corpus_id stringlengths 3 9 | arxiv_id stringlengths 9 16 | date stringdate 1989-10-26 00:00:00 2024-09-30 00:00:00 | title stringlengths 4 240 | abstract stringlengths 3 3.15k | categories listlengths 1 10 | topics listlengths 0 15 ⌀ | roles listlengths 1 4 | key_references listlengths 0 10 ⌀ | authors listlengths 1 5.28k ⌀ | citation_trajectory listlengths 14 26 ⌀ |
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59401029 | 0902.4603 | 2009-02-26 | Markov Chain Monte Carlo Estimation of Quantum States | We apply a Bayesian data analysis scheme known as the Markov Chain Monte Carlo (MCMC) to the tomographic reconstruction of quantum states. This method yields a vector, known as the Markov chain, which contains the full statistical information concerning all reconstruction parameters including their statistical correlat... | [
"quant-ph"
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15764383 | 0902.4708 | 2009-02-26 | Fast radiation mediated shocks and supernova shock breakouts | We present a simple analytic model for the structure of non-relativistic and relativistic radiation mediated shocks. At shock velocities \beta_s\equiv v_s/c\gtrsim 0.1, the shock transition region is far from thermal equilibrium, since the transition crossing time is too short for the production of a black-body photon ... | [
"astro-ph.HE"
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15122535 | 0902.4496 | 2009-02-26 | Geometric ergodicity of a bead-spring pair with stochastic Stokes forcing | We consider a simple model for the fluctuating hydrodynamics of a flexible polymer in dilute solution, demonstrating geometric ergodicity for a pair of particles that interact with each other through a nonlinear spring potential while being advected by a stochastic Stokes fluid velocity field. This is a generalization ... | [
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"name": "Scott [\"A.\"] McKinley",
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15772894 | 0902.4668 | 2009-02-26 | Weak Landau-Ginzburg models for smooth Fano threefolds | The paper is joined with arXiv:0911.5428 and improved. We prove that Landau-Ginzburg models for all 17 smooth Fano threefolds with Picard rank 1 can be represented as Laurent polynomials in 3 variables exhibiting them case by case. We check that these Landau-Ginzburg models can be compactified to open Calabi-Yau variet... | [
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18877930 | 0902.4687 | 2009-02-26 | The Active Centaurs | The Centaurs are recent escapees from the Kuiper belt that are destined either to meet fiery oblivion in the hot inner regions of the Solar system or to be ejected to the interstellar medium by gravitational scattering from the giant planets. Dynamically evolved Centaurs, when captured by Jupiter and close enough to th... | [
"astro-ph.EP"
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6090781 | 0902.4693 | 2009-02-26 | Search for Axions with the CDMS Experiment | We report on the first axion search results from the Cryogenic Dark Matter Search (CDMS) experiment at the Soudan Underground Laboratory. An energy threshold of 2 keV for electron-recoil events allows a search for possible solar axion conversion into photons or local Galactic axion conversion into electrons in the germ... | [
"hep-ex"
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196206817 | 0902.4527 | 2009-02-26 | EXtensible Animator for Mobile Simulations: EXAMS | One of the most widely used simulation environments for mobile wireless networks is the Network Simulator 2 (NS-2). However NS-2 stores its outcome in a text file, so there is a need for a visualization tool to animate the simulation of the wireless network. The purpose of this tool is to help the researcher examine in... | [
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14782120 | 0902.4838 | 2009-02-27 | Consistencies and rates of convergence of jump-penalized least squares estimators | We study the asymptotics for jump-penalized least squares regression aiming at approximating a regression function by piecewise constant functions. Besides conventional consistency and convergence rates of the estimates in $L^2([0,1))$ our results cover other metrics like Skorokhod metric on the space of c\`{a}dl\`{a}g... | [
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58939410 | 0902.4759 | 2009-02-27 | Non-Gaussianity as a Probe of the Physics of the Primordial Universe and the Astrophysics of the Low Redshift Universe | A new and powerful probe of the origin and evolution of structures in the Universe has emerged and been actively developed over the last decade. In the coming decade, non-Gaussianity, i.e., the study of non-Gaussian contributions to the correlations of cosmological fluctuations, will become an important probe of both t... | [
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"name": "Niayesh Afshordi",
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16405040 | 0903.0087 | 2009-02-28 | Discovery of new gamma-ray pulsars with AGILE | Using gamma-ray data collected by the Astrorivelatore Gamma ad Immagini LEggero (AGILE) satellite over a period of almost one year (from 2007 July to 2008 June), we searched for pulsed signals from 35 potentially interesting radio pulsars, ordered according to $F_{\gamma}\propto \sqrt{\dot{E}} d^{-2}$ and for which con... | [
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"name": "Maura Pilia",
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1015745 | 0903.0034 | 2009-02-28 | Measuring Independence of Datasets | A data stream model represents setting where approximating pairwise, or $k$-wise, independence with sublinear memory is of considerable importance. In the streaming model the joint distribution is given by a stream of $k$-tuples, with the goal of testing correlations among the components measured over the entire stream... | [
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14928293 | 0903.0107 | 2009-02-28 | Poisson asymptotics for random projections of points on a high-dimensional sphere | Project a collection of points on the high-dimensional sphere onto a random direction. If most of the points are sufficiently far from one another in an appropriate sense, the projection is locally close in distribution to the Poisson point process. | [
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513312 | 0903.0094 | 2009-03-01 | Dynamic Conjectures in Random Access Networks Using Bio-inspired Learning | This paper considers a conjecture-based distributed learning approach that enables autonomous nodes to independently optimize their transmission probabilities in random access networks. We model the interaction among multiple self-interested nodes as a game. It is well-known that the Nash equilibria in this game result... | [
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14412285 | 0903.0207 | 2009-03-01 | A Systematic Framework for Dynamically Optimizing Multi-User Wireless Video Transmission | In this paper, we formulate the collaborative multi-user wireless video transmission problem as a multi-user Markov decision process (MUMDP) by explicitly considering the users' heterogeneous video traffic characteristics, time-varying network conditions and the resulting dynamic coupling between the wireless users. Th... | [
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18188689 | 0903.0148 | 2009-03-01 | Geometric interpretation of pre-vitrification in hard sphere liquids | We derive a microscopic criterion for the stability of hard sphere configurations, and we show empirically that this criterion is marginally satisfied in the glass. This observation supports a geometric interpretation for the initial rapid rise of viscosity with packing fraction, or pre-vitrification. It also implies t... | [
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"name": "Matthieu Wyart",
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... | null |
10176386 | 0903.0149 | 2009-03-01 | Comparison of Pedestrian Fundamental Diagram Across Cultures | The relation between speed and density is connected with every self-organization phenomenon of pedestrian dynamics and offers the opportunity to analyze them quantitatively. But even for the simplest systems, like pedestrian streams in corridors, this fundamental relation isn't completely understood. Specifications of ... | [
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14117115 | 0903.0290 | 2009-03-02 | Monte Carlo maximum likelihood estimation for discretely observed diffusion processes | This paper introduces a Monte Carlo method for maximum likelihood inference in the context of discretely observed diffusion processes. The method gives unbiased and a.s.\@ continuous estimators of the likelihood function for a family of diffusion models and its performance in numerical examples is computationally effic... | [
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15923392 | 0903.0005 | 2009-03-02 | Next-to-leading-order predictions for t-channel single-top production at hadron colliders | We present the predictions at next-to-leading order (NLO) in the strong coupling for the single-top cross section in the t channel at the Tevatron and the LHC. Our calculation starts from the 2 -> 3 Born amplitude g q -> t bbar q', keeping the b-quark mass non-zero. A comparison is performed with a traditional NLO calc... | [
"hep-ph"
] | null | [
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14775773 | 0903.0201 | 2009-03-02 | Bayesian testing of many hypotheses $\times$ many genes: A study of sleep apnea | Substantial statistical research has recently been devoted to the analysis of large-scale microarray experiments which provide a measure of the simultaneous expression of thousands of genes in a particular condition. A typical goal is the comparison of gene expression between two conditions (e.g., diseased vs. nondisea... | [
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"author_id": "i erkan_0",
"name": "Ibrahim Erkan",
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17168366 | 0903.0237 | 2009-03-02 | The lost siblings of the Sun | The anomalous chemical abundances and the structure of the Edgewood-Kuiper belt observed in the solar system constrain the initial mass and radius of the star cluster in which the sun was born to $M\simeq500$ to 3000 \msun and $R\simeq 1$ to 3 pc. When the cluster dissolved the siblings of the sun dispersed through the... | [
"astro-ph.GA",
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] | null | [
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] | null | null | null |
17496750 | 0903.0298 | 2009-03-02 | Homogeneous Approximation, Recursive Observer Design, and Output Feedback | We introduce two new tools that can be useful in nonlinear observer and output feedback design. The first one is a simple extension of the notion of homogeneous approximation to make it valid both at the origin and at infinity (homogeneity in the bi-limit). Exploiting this extension, we give several results concerning ... | [
"math.OC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
9494414 | 0903.0291 | 2009-03-02 | Fluid limits for networks with bandwidth sharing and general document size distributions | We consider a stochastic model of Internet congestion control, introduced by Massouli\'{e} and Roberts [Telecommunication Systems 15 (2000) 185--201], that represents the randomly varying number of flows in a network where bandwidth is shared among document transfers. In contrast to an earlier work by Kelly and William... | [
"math.PR"
] | null | [
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] | null | null | null |
115169297 | 0903.0340 | 2009-03-02 | Physics, Topology, Logic and Computation: A Rosetta Stone | In physics, Feynman diagrams are used to reason about quantum processes. In the 1980s, it became clear that underlying these diagrams is a powerful analogy between quantum physics and topology: namely, a linear operator behaves very much like a "cobordism". Similar diagrams can be used to reason about logic, where they... | [
"quant-ph",
"math.CT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
119271650 | 0903.0209 | 2009-03-02 | Anomalous magneto-optical Kerr effect in perpendicularly magnetized Co/Pt films on two-dimensional colloidal crystals | We have studied the magneto-optical Kerr effect and optical reflectance of perpendicular magnetized Co/Pt films on self-assembly two-dimensional polystyrene spheres. It is shown that the magneto-optical and the reflectance spectra are correlated to each other. Calculations have shown that the magneto-optical Kerr rotat... | [
"cond-mat.mtrl-sci"
] | null | [
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{
"author_id": "z liu_278",
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"author_id": "l shi_19",
"name": "Lei Shi",
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443575 | 0903.0479 | 2009-03-03 | Combining Symmetry Breaking and Global Constraints | We propose a new family of constraints which combine together lexicographical ordering constraints for symmetry breaking with other common global constraints. We give a general purpose propagator for this family of constraints, and show how to improve its complexity by exploiting properties of the included global const... | [
"cs.AI"
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"name": "Nina Narodytska",
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11431483 | 0903.0595 | 2009-03-03 | Noisy-interference Sum-rate Capacity of Parallel Gaussian Interference Channels | The sum-rate capacity of the parallel Gaussian interference channel is shown to be achieved by independent transmission across sub-channels and treating interference as noise in each sub-channel if the channel coefficients and power constraints satisfy a certain condition. The condition requires the interference to be ... | [
"cs.IT",
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] | null | [
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505058 | 0903.0649 | 2009-03-03 | The Nonparanormal: Semiparametric Estimation of High Dimensional Undirected Graphs | Recent methods for estimating sparse undirected graphs for real-valued data in high dimensional problems rely heavily on the assumption of normality. We show how to use a semiparametric Gaussian copula--or "nonparanormal"--for high dimensional inference. Just as additive models extend linear models by replacing linear ... | [
"stat.ML"
] | null | [
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"name": "John [\"D.\"] Lafferty",
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1891128 | 0903.0467 | 2009-03-03 | The Parameterized Complexity of Global Constraints | We argue that parameterized complexity is a useful tool with which to study global constraints. In particular, we show that many global constraints which are intractable to propagate completely have natural parameters which make them fixed-parameter tractable and which are easy to compute. This tractability tends eithe... | [
"cs.AI",
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
158042 | 0903.0465 | 2009-03-03 | Breaking Value Symmetry | Symmetry is an important factor in solving many constraint satisfaction problems. One common type of symmetry is when we have symmetric values. In a recent series of papers, we have studied methods to break value symmetries. Our results identify computational limits on eliminating value symmetry. For instance, we prove... | [
"cs.AI"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2813462 | 0903.0544 | 2009-03-03 | A constructive proof of the general Lovasz Local Lemma | The Lovasz Local Lemma [EL75] is a powerful tool to non-constructively prove the existence of combinatorial objects meeting a prescribed collection of criteria. In his breakthrough paper [Bec91], Beck demonstrated that a constructive variant can be given under certain more restrictive conditions. Simplifications of his... | [
"cs.DS",
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"cs.DM"
] | null | [
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14075747 | 0903.0645 | 2009-03-03 | A new approach to Cholesky-based covariance regularization in high dimensions | In this paper we propose a new regression interpretation of the Cholesky factor of the covariance matrix, as opposed to the well known regression interpretation of the Cholesky factor of the inverse covariance, which leads to a new class of regularized covariance estimators suitable for high-dimensional problems. Regul... | [
"stat.ME"
] | null | [
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] | null | null | null |
2373551 | 0903.0648 | 2009-03-03 | Tilings and Submonoids of Metabelian Groups | In this paper we show that membership in finitely generated submonoids is undecidable for the free metabelian group of rank 2 and for the wreath product $\mathbb Z\wr (\mathbb Z\times \mathbb Z)$. We also show that subsemimodule membership is undecidable for finite rank free $(\mathbb Z\times \mathbb Z)$-modules. The p... | [
"math.GR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
350017 | 0903.0471 | 2009-03-03 | SLIDE: A Useful Special Case of the CARDPATH Constraint | We study the CardPath constraint. This ensures a given constraint holds a number of times down a sequence of variables. We show that SLIDE, a special case of CardPath where the slid constraint must hold always, can be used to encode a wide range of sliding sequence constraints including CardPath itself. We consider how... | [
"cs.AI",
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] | null | [
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] | null | null | null |
1527404 | 0903.0566 | 2009-03-03 | Quantum LDPC codes with positive rate and minimum distance proportional to n^{1/2} | The current best asymptotic lower bound on the minimum distance of quantum LDPC codes with fixed non-zero rate is logarithmic in the blocklength. We propose a construction of quantum LDPC codes with fixed non-zero rate and prove that the minimum distance grows proportionally to the square root of the blocklength. | [
"cs.IT",
"math.IT",
"quant-ph"
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] | null | null | null |
17604691 | 0903.0483 | 2009-03-03 | Adaptive independent Metropolis--Hastings | We propose an adaptive independent Metropolis--Hastings algorithm with the ability to learn from all previous proposals in the chain except the current location. It is an extension of the independent Metropolis--Hastings algorithm. Convergence is proved provided a strong Doeblin condition is satisfied, which essentiall... | [
"math.PR"
] | null | [
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] | null | null | null |
119289138 | 0903.0543 | 2009-03-03 | Optimal quantum learning of a unitary transformation | We address the problem of learning an unknown unitary transformation from a finite number of examples. The problem consists in finding the learning machine that optimally emulates the examples, thus reproducing the unknown unitary maximum fidelity. Learning a unitary is equivalent to storing it in the state of a quantu... | [
"quant-ph"
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"author_id": "g chiribella_1",
"name": "Giulio Chiribella",
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15265169 | 0903.0463 | 2009-03-03 | Generalized Calder\'on conditions and regular orbit spaces | The construction of generalized continuous wavelet transforms on locally compact abelian groups $A$ from quasi-regular representations of a semidirect product group $G = A \rtimes H$ acting on ${\rm L}^2(A)$ requires the existence of a square-integrable function whose Plancherel transform satisfies Calder\'on-type reso... | [
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2065448 | 0903.0435 | 2009-03-03 | R-charges, Chiral Rings and RG Flows in Supersymmetric Chern-Simons-Matter Theories | We discuss the non-perturbative behavior of the U(1)_R symmetry in N=2 superconformal Chern-Simons theories coupled to matter in the (anti)fundamental and adjoint representations of the gauge group, which we take to be U(N). Inequalities constraining this behavior are obtained as consequences of spontaneous breaking of... | [
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{
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12983824 | 0903.0640 | 2009-03-03 | Loss networks | We review the theory of loss networks, including recent results on their dynamical behaviour. We give also some new results. | [
"math.PR"
] | null | [
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] | null | null | null |
18532381 | 0903.0447 | 2009-03-03 | Propagation of outliers in multivariate data | We investigate the performance of robust estimates of multivariate location under nonstandard data contamination models such as componentwise outliers (i.e., contamination in each variable is independent from the other variables). This model brings up a possible new source of statistical error that we call "propagation... | [
"math.ST",
"stat.TH"
] | null | [
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] | null | null | null |
17083709 | 0903.0614 | 2009-03-03 | Random matrices: The distribution of the smallest singular values | Let $\a$ be a real-valued random variable of mean zero and variance 1. Let $M_n(\a)$ denote the $n \times n$ random matrix whose entries are iid copies of $\a$ and $\sigma_n(M_n(\a))$ denote the least singular value of $M_n(\a)$. ($\sigma_n(M_n(\a))^2$ is also usually interpreted as the least eigenvalue of the Wishart ... | [
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"math.CO"
] | null | [
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14185789 | 0903.0597 | 2009-03-03 | Analysis of a threshold model of social contagion on degree-correlated networks | We analytically determine when a range of abstract social contagion models permit global spreading from a single seed on degree-correlated random networks. We deduce the expected size of the largest vulnerable component, a network's tinderbox-like critical mass, as well as the probability that infecting a randomly chos... | [
"physics.soc-ph"
] | null | [
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] | null | null | null |
11484739 | 0903.0475 | 2009-03-03 | Reformulating Global Grammar Constraints | An attractive mechanism to specify global constraints in rostering and other domains is via formal languages. For instance, the Regular and Grammar constraints specify constraints in terms of the languages accepted by an automaton and a context-free grammar respectively. Taking advantage of the fixed length of the cons... | [
"cs.AI"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "g katsirelos_1",
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{
"author_id": "n narodytska_1",
"name": "Nina Narodytska",
"publication_history": null,
"h_index": null,
"num_pape... | null |
17759916 | 0903.0650 | 2009-03-03 | Compressive Sensing Using Low Density Frames | We consider the compressive sensing of a sparse or compressible signal ${\bf x} \in {\mathbb R}^M$. We explicitly construct a class of measurement matrices, referred to as the low density frames, and develop decoding algorithms that produce an accurate estimate $\hat{\bf x}$ even in the presence of additive noise. Low ... | [
"cs.IT",
"math.IT",
"stat.CO"
] | null | [
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] | [
{
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{
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] | [
{
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"name": "Mehmet Akçakaya",
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},
{
"author_id": "j park_99",
"name": "Jinsoo Park",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
14632395 | 0903.0768 | 2009-03-04 | Rabinowitz Floer homology and symplectic homology | The Rabinowitz-Floer homology groups $RFH_*(M,W)$ are associated to an exact embedding of a contact manifold $(M,\xi)$ into a symplectic manifold $(W,\omega)$. They depend only on the bounded component $V$ of $W\setminus M$. We construct a long exact sequence in which symplectic cohomology of $V$ maps to symplectic hom... | [
"math.SG"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
32385768 | 0903.0676 | 2009-03-04 | Search for Proton Decay via p -> e^+ pi^0 and p -> mu^+ pi^0 in a Large Water Cherenkov Detector | We have searched for proton decays via p -> e^+ pi^0 and p -> mu^+ pi^0 using data from a 91.7 kiloton year exposure of Super-Kamiokande-I and a 49.2 kiloton year exposure of Super-Kamiokande-II. No candidate events were observed with expected backgrounds induced by atmospheric neutrinos of 0.3 events for each decay mo... | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "h nishino_2",
"name": "Hitoshi Nishino",
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},
{
"author_id": "s clark_3",
"name": "S. [\"T.\"] Clark",
"publication_history": null,
"h_index": null,
"num_papers": nul... | null |
43510913 | 0903.0871 | 2009-03-04 | More on crinkles in the last scattering surface | Inhomogeneous recombination can give rise to perturbations in the electron number density which can be a factor of five larger than the perturbations in baryon density. We do a thorough analysis of the second order anisotropies generated in the cosmic microwave background (CMB) due to perturbations in the electron numb... | [
"astro-ph.CO"
] | null | [
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] | [] | [
{
"author_id": "r khatri_2",
"name": "Rishi Khatri",
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},
{
"author_id": "b wandelt_1",
"name": "Benjamin [\"D.\"] Wandelt",
"publication_history": null,
"h_index": null,
"num_papers... | null |
4313168 | 0903.0752 | 2009-03-04 | Global and local sea level during the Last Interglacial: A probabilistic assessment | The Last Interglacial (LIG) stage, with polar temperatures likely 3-5 C warmer than today, serves as a partial analogue for low-end future warming scenarios. Based upon a small set of local sea level indicators, the Intergovernmental Panel on Climate Change (IPCC) inferred that LIG global sea level (GSL) was about 4-6 ... | [
"physics.geo-ph",
"physics.ao-ph",
"physics.data-an"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
35771225 | 0903.0677 | 2009-03-04 | Exact solution for mean first-passage time on a pseudofractal scale-free web | The explicit determinations of the mean first-passage time (MFPT) for trapping problem are limited to some simple structure, e.g., regular lattices and regular geometrical fractals, and determining MFPT for random walks on other media, especially complex real networks, is a theoretical challenge. In this paper, we inve... | [
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "z zhang_150",
"name": "Zhongzhi Zhang",
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},
{
"author_id": "y qi_17",
"name": "Yi Qi",
"publication_history": null,
"h_index": null,
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"num_cit... | null |
1448543 | 0903.0728 | 2009-03-04 | Support points of locally optimal designs for nonlinear models with two parameters | We propose a new approach for identifying the support points of a locally optimal design when the model is a nonlinear model. In contrast to the commonly used geometric approach, we use an approach based on algebraic tools. Considerations are restricted to models with two parameters, and the general results are applied... | [
"stat.ME",
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14919683 | 0903.0850 | 2009-03-04 | Observation of Single Top-Quark Production | We report observation of the electroweak production of single top quarks in ppbar collisions at sqrt(s) = 1.96 TeV based on 2.3 fb^-1 of data collected by the D0 detector at the Fermilab Tevatron Collider. Using events containing an isolated electron or muon and missing transverse energy, together with jets originating... | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "v abazov_1",
"name": "Victor [\"Mukhamedovich\"] Abazov",
"publication_history": null,
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},
{
"author_id": "b abbott_2",
"name": "B. Abbott",
"publication_history": null,
"h_index": null,
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17108796 | 0903.1125 | 2009-03-05 | Efficient Human Computation | Collecting large labeled data sets is a laborious and expensive task, whose scaling up requires division of the labeling workload between many teachers. When the number of classes is large, miscorrespondences between the labels given by the different teachers are likely to occur, which, in the extreme case, may reach t... | [
"cs.LG"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r gilad-bachrach_1",
"name": "Ran Gilad-Bachrach",
"publication_history": null,
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},
{
"author_id": "a bar-hillel_1",
"name": "Aharon Bar-Hillel",
"publication_history": null,
"h_index": null,
"n... | null |
15628147 | 0903.0902 | 2009-03-05 | Observing the Evolution of the Universe | How did the universe evolve? The fine angular scale (l>1000) temperature and polarization anisotropies in the CMB are a Rosetta stone for understanding the evolution of the universe. Through detailed measurements one may address everything from the physics of the birth of the universe to the history of star formation a... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j aguirre_2",
"name": "James [\"E.\"] Aguirre",
"publication_history": null,
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},
{
"author_id": "a amblard_1",
"name": "Alexandre Amblard",
"publication_history": null,
"h_index": null,
"num_pap... | null |
55350378 | 0903.1127 | 2009-03-05 | Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory | From direct observations of the longitudinal development of ultra-high energy air showers performed with the Pierre Auger Observatory, upper limits of 3.8%, 2.4%, 3.5% and 11.7% (at 95% c.l.) are obtained on the fraction of cosmic-ray photons above 2, 3, 5 and 10 EeV (1 EeV = 10^18 eV) respectively. These are the first... | [
"astro-ph.HE"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "t abraham_1",
"name": "The [\"Pierre\",\"Auger\",\"Collaboration\",\"J.\"] Abraham",
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},
{
"author_id": "p abreu_1",
"name": "Pedro Abreu",
"publication_history": null,
... | null |
17733093 | 0903.1010 | 2009-03-05 | The Hardness of Approximating the Threshold Dimension, Boxicity and Cubicity of a Graph | A $k$-dimensional box is the Cartesian product $R_1 \times R_2 \times ... \times R_k$ where each $R_i$ is a closed interval on the real line. The {\it boxicity} of a graph $G$, denoted as $\boxi(G)$, is the minimum integer $k$ such that $G$ can be represented as the intersection graph of a collection of $k$-dimensional... | [
"math.CO",
"math.GN"
] | null | [
"target.author.publication_history"
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{
"author_id": "a adiga_2",
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{
"author_id": "d bhowmick_1",
"name": "Diptendu Bhowmick",
"publication_history": null,
"h_index": null,
"num_papers": null... | null |
15256925 | 0903.1126 | 2009-03-05 | On the Structure of Infrared Singularities of Gauge-Theory Amplitudes | A closed formula is obtained for the infrared singularities of dimensionally regularized, massless gauge-theory scattering amplitudes with an arbitrary number of legs and loops. It follows from an all-order conjecture for the anomalous-dimension matrix of n-jet operators in soft-collinear effective theory. We show that... | [
"hep-ph",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
20566845 | 0903.1122 | 2009-03-05 | Radiation reaction and gravitational waves in the effective field theory approach | We compute the contribution to the Lagrangian from the leading order (2.5 post-Newtonian) radiation reaction and the quadrupolar gravitational waves emitted from a binary system using the effective field theory (EFT) approach of Goldberger and Rothstein. We use an initial value formulation of the underlying (quantum) f... | [
"gr-qc",
"hep-th"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c galley_1",
"name": "Chad [\"R.\"] Galley",
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},
{
"author_id": "m tiglio_1",
"name": "Manuel Tiglio",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
14176652 | 0903.1072 | 2009-03-05 | Tolerating the Community Detection Resolution Limit with Edge Weighting | Communities of vertices within a giant network such as the World-Wide Web are likely to be vastly smaller than the network itself. However, Fortunato and Barth\'{e}lemy have proved that modularity maximization algorithms for community detection may fail to resolve communities with fewer than $\sqrt{L/2}$ edges, where $... | [
"physics.soc-ph",
"physics.data-an"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16419997 | 0903.0924 | 2009-03-05 | Epidemic spreading with nonlinear infectivity in weighted scale-free networks | In this paper, we investigate the epidemic spreading for SIR model in weighted scale-free networks with nonlinear infectivity, where the transmission rate in our analytical model is weighted. Concretely, we introduce the infectivity exponent $\alpha$ and the weight exponent $\beta$ into the analytical SIR model, then e... | [
"q-bio.PE",
"physics.soc-ph"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "x chu_28",
"name": "Xiangwei Chu",
"publication_history": null,
"h_index": null,
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},
{
"author_id": "z zhang_150",
"name": "Zhongzhi Zhang",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
2992650 | 0903.0901 | 2009-03-05 | The dynamics of weakly reversible population processes near facets | This paper concerns the dynamical behavior of weakly reversible, deterministically modeled population processes near the facets (codimension-one faces) of their invariant manifolds and proves that the facets of such systems are "repelling." It has been conjectured that any population process whose network graph is weak... | [
"math.DS"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
8285200 | 0903.1139 | 2009-03-05 | The Complexity of Reasoning with Global Constraints | Constraint propagation is one of the techniques central to the success of constraint programming. To reduce search, fast algorithms associated with each constraint prune the domains of variables. With global (or non-binary) constraints, the cost of such propagation may be much greater than the quadratic cost for binary... | [
"cs.AI",
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3264013 | 0903.1136 | 2009-03-06 | Symmetry Breaking Using Value Precedence | We present a comprehensive study of the use of value precedence constraints to break value symmetry. We first give a simple encoding of value precedence into ternary constraints that is both efficient and effective at breaking symmetry. We then extend value precedence to deal with a number of generalizations like wreat... | [
"cs.AI",
"cs.CC"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
1542546 | 0903.1298 | 2009-03-06 | Stochastic modelling of reaction-diffusion processes: algorithms for bimolecular reactions | Several stochastic simulation algorithms (SSAs) have been recently proposed for modelling reaction-diffusion processes in cellular and molecular biology. In this paper, two commonly used SSAs are studied. The first SSA is an on-lattice model described by the reaction-diffusion master equation. The second SSA is an off-... | [
"physics.bio-ph",
"q-bio.QM"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
118539010 | 0903.1103 | 2009-03-06 | LoCuSS: Subaru Weak Lensing Study of 30 Galaxy Clusters | (Abridged) We use Subaru data to conduct a detailed weak-lensing study of the dark matter distribution in a sample of 30 X-ray luminous galaxy clusters at 0.15<z<0.3. A weak-lensing signal is detected at high statistical significance in each cluster, the total detection S/N ranging from 5 to 13. In this paper we concen... | [
"astro-ph.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
33607817 | 0903.1286 | 2009-03-06 | SN 2008S: an electron capture SN from a super-AGB progenitor? | We present comprehensive photometric and spectroscopic observations of the faint transient SN 2008S discovered in NGC 6946. SN 2008S exhibited slow photometric evolution and almost no spectral variability during the first nine months, implying a high density CS medium. The light curve is similar in shape to that of SN ... | [
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
16112437 | 0903.1219 | 2009-03-06 | QCD matrix elements and truncated showers | We derive an improved prescription for the merging of matrix elements with parton showers, extending the CKKW approach. A flavour-dependent phase space separation criterion is proposed. We show that this new method preserves the logarithmic accuracy of the shower, and that the original proposal can be derived from it. ... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
55914140 | 0903.1231 | 2009-03-06 | Benchmark problems for continuum radiative transfer. High optical depths, anisotropic scattering, and polarisation | Solving the continuum radiative transfer equation in high opacity media requires sophisticated numerical tools. In order to test the reliability of such tools, we present a benchmark of radiative transfer codes in a 2D disc configuration. We test the accuracy of seven independently developed radiative transfer codes by... | [
"astro-ph.SR",
"astro-ph.EP",
"astro-ph.IM"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
53534475 | 0903.1251 | 2009-03-06 | The Halo Mass Function from Excursion Set Theory. III. Non-Gaussian Fluctuations | We compute the effect of primordial non-Gaussianity on the halo mass function, using excursion set theory. In the presence of non-Gaussianity the stochastic evolution of the smoothed density field, as a function of the smoothing scale, is non-markovian and beside "local" terms that generalize Press-Schechter (PS) theor... | [
"astro-ph.CO",
"gr-qc",
"hep-ph",
"hep-th"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2459784 | 0903.1287 | 2009-03-06 | A convex polynomial that is not sos-convex | A multivariate polynomial $p(x)=p(x_1,...,x_n)$ is sos-convex if its Hessian $H(x)$ can be factored as $H(x)= M^T(x) M(x)$ with a possibly nonsquare polynomial matrix $M(x)$. It is easy to see that sos-convexity is a sufficient condition for convexity of $p(x)$. Moreover, the problem of deciding sos-convexity of a poly... | [
"math.OC"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "14956103",
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] | [
{
"author_id": "a ahmadi_2",
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},
{
"author_id": "p parrilo_1",
"name": "Pablo [\"A.\"] Parrilo",
"publication_history": null,
"h_index": null,
"num_... | null |
67811196 | 0903.1201 | 2009-03-06 | Effects of Flavor Dependence on Weak Decays of J/psi and \Upsilon | We give the detailed analysis of effects of flavor dependence of average transverse quark momentum inside a meson on J/psi --> P and \Upsilon --> Bc transition form factors and two-body weak hadronic decays of J/psi and \Upsilon employing the factorization scheme. We predict the branching ratios of semileptonic and non... | [
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
14594251 | 0903.1223 | 2009-03-06 | Sparse Regression Learning by Aggregation and Langevin Monte-Carlo | We consider the problem of regression learning for deterministic design and independent random errors. We start by proving a sharp PAC-Bayesian type bound for the exponentially weighted aggregate (EWA) under the expected squared empirical loss. For a broad class of noise distributions the presented bound is valid whene... | [
"stat.AP",
"math.ST",
"stat.TH"
] | null | [
"target.author.publication_history",
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] | [] | [
{
"author_id": "a dalalyan_1",
"name": "Arnak [\"S.\"] Dalalyan",
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},
{
"author_id": "a tsybakov_1",
"name": "A. Tsybakov",
"publication_history": null,
"h_index": null,
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7516455 | 0903.1133 | 2009-03-06 | What Can be Observed Locally? Round-based Models for Quantum Distributed Computing | Recently, several claims have been made that certain fundamental problems of distributed computing, including Leader Election and Distributed Consensus, begin to admit feasible and efficient solutions when the model of distributed computation is extended so as to apply quantum processing. This has been achieved in one ... | [
"quant-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2481358 | 0903.1197 | 2009-03-06 | Cubicity of interval graphs and the claw number | Let $G(V,E)$ be a simple, undirected graph where $V$ is the set of vertices and $E$ is the set of edges. A $b$-dimensional cube is a Cartesian product $I_1\times I_2\times...\times I_b$, where each $I_i$ is a closed interval of unit length on the real line. The \emph{cubicity} of $G$, denoted by $\cub(G)$ is the minimu... | [
"math.CO"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "a adiga_2",
"name": "Abhijin Adiga",
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},
{
"author_id": "l chandran_1",
"name": "L. [\"Sunil\"] Chandran",
"publication_history": null,
"h_index": null,
"num_papers"... | null |
55277697 | 0903.1373 | 2009-03-07 | Trace Diagrams, Matrix Minors, and Determinant Identities | Trace diagrams are structured graphs with edges labeled by matrices. Each diagram has an interpretation as a particular multilinear function. We provide a rigorous combinatorial definition of these diagrams using a notion of signed graph coloring, and prove that they may be efficiently represented in terms of matrix mi... | [
"math.CO"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
3087909 | 0903.1124 | 2009-03-07 | Evidence for the eta_b(1S) Meson in Radiative Upsilon(2S) Decay | We have performed a search for the eta_b(1S) meson in the radiative decay of the Upsilon(2S) resonance using a sample of 91.6 million Upsilon(2S) events recorded with the BABAR detector at the PEP-II B factory at the SLAC National Accelerator Laboratory. We observe a peak in the photon energy spectrum at E_gamma = 609.... | [
"hep-ex"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "b aubert_1",
"name": "Bernard Aubert",
"publication_history": null,
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},
{
"author_id": "m bona_1",
"name": "Marcella Bona",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
33116397 | 0903.1372 | 2009-03-07 | Large coupled oscillator systems with heterogeneous interaction delays | In order to discover generic effects of heterogeneous communication delays on the dynamics of large systems of coupled oscillators, this paper studies a modification of the Kuramoto model incorporating a distribution of interaction delays. By focusing attention on the reduced dynamics on an invariant manifold of the or... | [
"nlin.CD"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "w lee_3",
"name": "Wai [\"Shing\"] Lee",
"publication_history": null,
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},
{
"author_id": "e ott_1",
"name": "Edward Ott",
"publication_history": null,
"h_index": null,
"num_papers": null,
"n... | null |
15665440 | 0903.1354 | 2009-03-07 | The Large APEX Bolometer Camera LABOCA | The Large APEX Bolometer Camera, LABOCA, has been commissioned for operation as a new facility instrument t the Atacama Pathfinder Experiment 12m submillimeter telescope. This new 295-bolometer total power camera, operating in the 870 micron atmospheric window, combined with the high efficiency of APEX and the excellen... | [
"astro-ph.IM"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
2202688 | 0903.1337 | 2009-03-07 | Efficient quantization for average consensus | This paper presents an algorithm which solves exponentially fast the average consensus problem on strongly connected network of digital links. The algorithm is based on an efficient zooming-in/zooming-out quantization scheme. | [
"math.OC",
"cs.SY"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "r carli_1",
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},
{
"author_id": "f fagnani_1",
"name": "Fabio Fagnani",
"publication_history": null,
"h_index": null,
"num_papers": null,
... | null |
15177741 | 0903.1652 | 2009-03-09 | Quantum state preparation by phase randomization | A computation in adiabatic quantum computing is implemented by traversing a path of nondegenerate eigenstates of a continuous family of Hamiltonians. We introduce a method that traverses a discretized form of the path: At each step we apply the instantaneous Hamiltonian for a random time. The resulting decoherence appr... | [
"quant-ph"
] | null | [
"target.author.publication_history"
] | [
{
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{
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},
{
"corpus_id": "1017074",
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}
] | [
{
"author_id": "s boixo_1",
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},
{
"author_id": "e knill_1",
"name": "Emanuel Knill",
"publication_history": null,
"h_index": null,
"num_papers": null,
"n... | null |
18679640 | 0903.1659 | 2009-03-09 | Heuristic Reasoning on Graph and Game Complexity of Sudoku | The Sudoku puzzle has achieved worldwide popularity recently, and attracted great attention of the computational intelligence community. Sudoku is always considered as Satisfiability Problem or Constraint Satisfaction Problem. In this paper, we propose to focus on the essential graph structure underlying the Sudoku puz... | [
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"cs.SC"
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}
] | null |
5973534 | 0903.1527 | 2009-03-09 | Nonequilibrium Thermodynamics of Amorphous Materials III: Shear-Transformation-Zone Plasticity | We use the internal-variable, effective-temperature thermodynamics developed in two preceding papers to reformulate the shear-transformation-zone (STZ) theory of amorphous plasticity. As required by the preceding analysis, we make explicit approximations for the energy and entropy of the STZ internal degrees of freedom... | [
"cond-mat.mtrl-sci",
"cond-mat.stat-mech"
] | null | [
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{
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"name": "James Langer",
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19310567 | 0903.1524 | 2009-03-09 | Nonequilibrium Thermodynamics of Amorphous Materials II: Effective-Temperature Theory | We develop a theory of the effective disorder temperature in glass-forming materials driven away from thermodynamic equilibrium by external forces. Our basic premise is that the slow configurational degrees of freedom of such materials are weakly coupled to the fast kinetic/vibrational degrees of freedom, and therefore... | [
"cond-mat.mtrl-sci",
"cond-mat.stat-mech"
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{
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17088432 | 0903.1525 | 2009-03-09 | The empirical properties of large covariance matrices | The salient properties of large empirical covariance and correlation matrices are studied for three datasets of size 54, 55 and 330. The covariance is defined as a simple cross product of the returns, with weights that decay logarithmically slowly. The key general properties of the covariance matrices are the following... | [
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5813764 | 0903.1684 | 2009-03-09 | Connectivity of Heterogeneous Wireless Networks | We address the connectivity of large-scale ad hoc heterogeneous wireless networks, where secondary users exploit channels temporarily unused by primary users and the existence of a communication link between two secondary users depends on not only the distance between them but also the transmitting and receiving activi... | [
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119256287 | 0903.1471 | 2009-03-09 | Dynamics and entanglement in spherically symmetric quantum gravity | The gravity-scalar field system in spherical symmetry provides a natural setting for exploring gravitational collapse and its aftermath in quantum gravity. In a canonical approach, we give constructions of the Hamiltonian operator, and of semiclassical states peaked on constraint free data. Such states provide explicit... | [
"gr-qc",
"hep-th",
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12592019 | 0903.1551 | 2009-03-09 | Molecular random tilings as glasses | We have recently shown [Blunt et al., Science 322, 1077 (2008)] that p-terphenyl-3,5,3',5'-tetracarboxylic acid adsorbed on graphite self-assembles into a two-dimensional rhombus random tiling. This tiling is close to ideal, displaying long range correlations punctuated by sparse localised tiling defects. In this paper... | [
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1255437 | 0903.1476 | 2009-03-09 | The Power of Convex Relaxation: Near-Optimal Matrix Completion | This paper is concerned with the problem of recovering an unknown matrix from a small fraction of its entries. This is known as the matrix completion problem, and comes up in a great number of applications, including the famous Netflix Prize and other similar questions in collaborative filtering. In general, accurate r... | [
"cs.IT",
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{
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{
"author_id": "t tao_10",
"name": "Terence Tao",
"publication_history": null,
"h_index": null,
"num_papers": nu... | null |
5783396 | 0903.1468 | 2009-03-09 | Taking Advantage of Sparsity in Multi-Task Learning | We study the problem of estimating multiple linear regression equations for the purpose of both prediction and variable selection. Following recent work on multi-task learning Argyriou et al. [2008], we assume that the regression vectors share the same sparsity pattern. This means that the set of relevant predictor var... | [
"stat.ML",
"math.ST",
"stat.TH"
] | null | [
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{
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},
{
"author_id": "m pontil_1",
"name": "Massimiliano Pontil",
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"h_index": null,
"num_papers": nu... | null |
5827907 | 0903.1521 | 2009-03-09 | Nonequilibrium Thermodynamics of Amorphous Materials I: Internal Degrees of Freedom and Volume Deformation | This is the first of three papers devoted to the nonequilibrium thermodynamics of amorphous materials. Our focus here is on the role of internal degrees of freedom in determining the dynamics of such systems. For illustrative purposes, we study a solid whose internal degrees of freedom are vacancies that govern irrever... | [
"cond-mat.mtrl-sci",
"cond-mat.stat-mech"
] | null | [
"target.author.publication_history"
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{
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{
"author_id": "j langer_1",
"name": "James Langer",
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"num_papers": nu... | null |
10519422 | 0903.1842 | 2009-03-10 | Decay of Correlations for Sparse Graph Error Correcting Codes | The subject of this paper is transmission over a general class of binary-input memoryless symmetric channels using error correcting codes based on sparse graphs, namely low-density generator-matrix and low-density parity-check codes. The optimal (or ideal) decoder based on the posterior measure over the code bits, and ... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history",
"target.author.publication_history.key_reference"
] | [] | [
{
"author_id": "s kudekar_1",
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{
"author_id": "n macris_1",
"name": "Nicolas Macris",
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"num_papers": nul... | null |
17721724 | 0903.1755 | 2009-03-10 | Time asymmetries in extensive air showers: a novel method to identify UHECR species | Azimuthal asymmetries in signals of non vertical showers have been observed in ground arrays of water Cherenkov detectors, like Haverah Park and the Pierre Auger Observatory. The asymmetry in time distributions of arriving particles offers a new possibility for the determination of the mass composition. The dependence ... | [
"astro-ph.IM",
"astro-ph.HE",
"hep-ph"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
122979070 | 0903.1681 | 2009-03-10 | First model-independent determination of the relative strong phase between D0 and D0B --> K0Spi+pi- and its impact on the CKM Angle gamma/phi3 measurement | We exploit the quantum coherence between pair-produced D0 and D0B in psi(3770) decays to make a first determination of the relative strong phase differences between D0--> K0Spi+pi- and D0B--> K0Spi+pi-, which are of great importance in determining the CKM angle gamma/phi3 in B- --> D0 (D0B) K- decays. Using 818 1/pb of... | [
"hep-ex"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
265099733 | 0903.1820 | 2009-03-10 | On the Capacity of Free-Space Optical Intensity Channels | New upper and lower bounds are presented on the capacity of the free-space optical intensity channel. This channel is characterized by inputs that are nonnegative (representing the transmitted optical intensity) and by outputs that are corrupted by additive white Gaussian noise (because in free space the disturbances a... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "a lapidoth_1",
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},
{
"author_id": "s moser_1",
"name": "Stefan [\"M.\"] Moser",
"publication_history": null,
"h_index": null,
"num_papers": ... | null |
12069448 | 0903.1828 | 2009-03-10 | The Murchison Widefield Array: Design Overview | The Murchison Widefield Array (MWA) is a dipole-based aperture array synthesis telescope designed to operate in the 80-300 MHz frequency range. It is capable of a wide range of science investigations, but is initially focused on three key science projects. These are detection and characterization of 3-dimensional brigh... | [
"astro-ph.IM",
"astro-ph.CO",
"astro-ph.SR"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
19525728 | 0903.1713 | 2009-03-10 | Fermi/LAT discovery of gamma-ray emission from the flat-spectrum radio quasar PKS 1454-354 | We report the discovery by the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope of high-energy gamma-ray (GeV) emission from the flat-spectrum radio quasar PKS 1454-354 (z=1.424). On 4 September 2008 the source rose to a peak flux of (3.5 +/- 0.7)x 10^-6 ph cm^-2 s^-1 (E > 100 MeV) on a time scale... | [
"astro-ph.HE",
"astro-ph.CO"
] | null | [
"target.author.publication_history"
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{
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{
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{
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{
"corpus_id": "52209640",
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},
{
"corpus_id": "18207120",
"num_citations": null
}... | [
{
"author_id": "a abdo_2",
"name": "A. [\"A.\"] Abdo",
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{
"author_id": "a abdo_2",
"name": "A. [\"A.\"] Abdo",
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... | null |
5953764 | 0903.1879 | 2009-03-10 | The Kakeya set and maximal conjectures for algebraic varieties over finite fields | Using the polynomial method of Dvir \cite{dvir}, we establish optimal estimates for Kakeya sets and Kakeya maximal functions associated to algebraic varieties $W$ over finite fields $F$. For instance, given an $n-1$-dimensional projective variety $W \subset \P^n(F)$, we establish the Kakeya maximal estimate $$ \| \sup_... | [
"math.CO",
"math.AG"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "j ellenberg_2",
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},
{
"author_id": "r oberlin_0",
"name": "Richard Oberlin",
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"h_index": null,
"num_... | null |
1011403 | 0903.1945 | 2009-03-11 | Hessian and concavity of mutual information, differential entropy, and entropy power in linear vector Gaussian channels | Within the framework of linear vector Gaussian channels with arbitrary signaling, closed-form expressions for the Jacobian of the minimum mean square error and Fisher information matrices with respect to arbitrary parameters of the system are calculated in this paper. Capitalizing on prior research where the minimum me... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history"
] | [
{
"corpus_id": "10687781",
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}
] | [
{
"author_id": "m payaró_1",
"name": "Miquel Payaró",
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},
{
"author_id": "d palomar_1",
"name": "Daniel [\"Pérez\"] Palomar",
"publication_history": null,
"h_index": null,
"num_pape... | null |
2638348 | 0903.1952 | 2009-03-11 | Statistical Eigenmode Transmission over Jointly-Correlated MIMO Channels | We investigate MIMO eigenmode transmission using statistical channel state information at the transmitter. We consider a general jointly-correlated MIMO channel model, which does not require separable spatial correlations at the transmitter and receiver. For this model, we first derive a closed-form tight upper bound f... | [
"cs.IT",
"math.IT"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
17457111 | 0903.1904 | 2009-03-11 | Phase transitions and random quantum satisfiability | Alongside the effort underway to build quantum computers, it is important to better understand which classes of problems they will find easy and which others even they will find intractable. We study random ensembles of the QMA$_1$-complete quantum satisfiability (QSAT) problem introduced by Bravyi. QSAT appropriately ... | [
"quant-ph",
"cond-mat.dis-nn",
"cond-mat.stat-mech",
"cs.CC"
] | null | [
"target.author.publication_history"
] | [] | [
{
"author_id": "c laumann_1",
"name": "Chris [\"R.\"] Laumann",
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"h_index": null,
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"num_citations": null
},
{
"author_id": "r moessner_1",
"name": "Roderich Moessner",
"publication_history": null,
"h_index": null,
"num_pa... | null |
119225465 | 0903.2113 | 2009-03-12 | Normal and lateral critical Casimir forces between colloids and patterned substrates | We study the normal and lateral effective critical Casimir forces acting on a spherical colloid immersed in a critical binary solvent and close to a chemically structured substrate with alternating adsorption preference. We calculate the universal scaling function for the corresponding potential and compare our results... | [
"cond-mat.soft"
] | null | [
"target.author.publication_history.key_reference"
] | null | null | null |
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