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\section{Introduction} Brown observed almost two centuries ago that the motion of a pollen suspended in water was erratic. This led to the kinetic explanation by Einstein in 1905 that Brownian motion was created by the constant ``kicks" on the relatively heavy pollen by the light water molecules. Einstein's theory, ...
{ "timestamp": "2006-02-06T02:08:20", "yymm": "0503", "arxiv_id": "math-ph/0503001", "language": "en", "url": "https://arxiv.org/abs/math-ph/0503001" }
\section{Introduction} In nano-MOSFETs, resonant tunneling diodes and other micro-electronic devices, quantum effects are known to play a significant role \cite{Markowich}. Recently, there has been some efforts to create models incorporating quantum effects for micro-electronic devices in a less expensive way than, fo...
{ "timestamp": "2005-03-02T22:19:10", "yymm": "0503", "arxiv_id": "quant-ph/0503030", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503030" }
\section{#1}\setcounter{equation}{0}} \newcommand{\subsect}[1]{\subsection{#1}} \renewcommand{\theequation}{\arabic{section}.\arabic{equation}} \font\mbn=msbm10 scaled \magstep1 \font\mbs=msbm7 scaled \magstep1 \font\mbss=msbm5 scaled \magstep1 \newfam\mbff \textfont\mbff=\mbn \scriptfont\mbff=\mbs \scriptscriptfont\mb...
{ "timestamp": "2005-03-21T04:27:23", "yymm": "0503", "arxiv_id": "math/0503408", "language": "en", "url": "https://arxiv.org/abs/math/0503408" }
\section{Introduction} \label{sec1} Let $G = (V,E)$ be a finite undirected graph with vertex set $V$ and edge set $E$.\footnote{ In this paper a ``graph'' is allowed to have loops and/or multiple edges unless explicitly stated otherwise. } The \defword{multivariate Tutte polynomial} of $G$ is, by definition, th...
{ "timestamp": "2005-03-25T17:44:15", "yymm": "0503", "arxiv_id": "math/0503607", "language": "en", "url": "https://arxiv.org/abs/math/0503607" }
\section{Introduction.} The problem of achieving and maintaining beam-beam collisions (BBC) at the International Linear Collider (ILC) ranks as possibly the greatest technical challenge in a project full of daunting technical challenges. It is not difficult to see why. For the purpose of counting degrees of freedom ...
{ "timestamp": "2005-03-03T22:54:15", "yymm": "0503", "arxiv_id": "physics/0503033", "language": "en", "url": "https://arxiv.org/abs/physics/0503033" }
\section{Introduction} It has been argued that prominent features in the spectra of brown dwarfs and extra-solar planets may be attributed to the resonance lines of the alkali metal atoms, broadened by collisions with the ambient hydrogen molecules and helium atoms \cite{burrows01,seager00,brown01,...
{ "timestamp": "2005-05-07T10:03:50", "yymm": "0503", "arxiv_id": "physics/0503244", "language": "en", "url": "https://arxiv.org/abs/physics/0503244" }
\section{Introduction} There is much current interest in the use of coherent control in order to generate novel matter-radiation states in cavity QED and atom-optics systems \cite{Alexandra}. In addition, the field of cavity QED has caught the interest of workers in the field of solid-state nanostructures, since effect...
{ "timestamp": "2005-05-02T15:59:07", "yymm": "0503", "arxiv_id": "quant-ph/0503015", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503015" }
\section{Introduction} The finite element method (FEM), originally developed for structure design and analysis, is usually based on nodal elements \cite{ZT}. Simply applying nodal elements to Maxwell equations causes problems such as spurious modes \cite{Sun}. The use of edge elements is the only reasonable way \cite%...
{ "timestamp": "2005-11-14T19:44:11", "yymm": "0503", "arxiv_id": "physics/0503013", "language": "en", "url": "https://arxiv.org/abs/physics/0503013" }
\section{Introduction} In \cite{Pa} A.N. Parshin offered a generalization of the classical KP-hierarchy and studied different properties of this system: the conversations laws, Zaharov-Shabat equations and some others. The generalized KP-hierarchy was there interpreted as a dynamical system on some infinite-dimensi...
{ "timestamp": "2005-11-07T18:21:09", "yymm": "0503", "arxiv_id": "math-ph/0503067", "language": "en", "url": "https://arxiv.org/abs/math-ph/0503067" }
\section{Introduction} Dynamics of public opinion is a central subject in political sciences. As votes can be described with numbers, research in this field belongs at least partially to the behavioral tradition in America or to the sociophysics in Europe. Indeed, opinion dynamics attracts attention of several aut...
{ "timestamp": "2005-04-13T08:43:53", "yymm": "0503", "arxiv_id": "physics/0503189", "language": "en", "url": "https://arxiv.org/abs/physics/0503189" }
\section{The model} Let us assume a model of $N$ identical two-level atoms (spin-1/2 particles), at positions $\vec{r}_1,\dots,\vec{r}_N$ coupled to a single mode electromagnetic field via the electric-dipole interaction originally proposed by Dicke \cite{Dicke1954} (see also Refs.~\cite{Tavis1967,Narducci1973,Andreev1...
{ "timestamp": "2005-03-24T19:04:12", "yymm": "0503", "arxiv_id": "quant-ph/0503195", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503195" }
\section{Introduction} Geometric discrete surfaces are commonplace in physics and mathematics. Their use in path integrals on discrete spaces, e.g. in statistical mechanics or Regge calculus, is well known. In mathematics discrete surfaces are sometimes used to characterize topologies, and they have many appli...
{ "timestamp": "2005-03-29T09:43:00", "yymm": "0503", "arxiv_id": "physics/0503212", "language": "en", "url": "https://arxiv.org/abs/physics/0503212" }
\section{Overview} Compared to \textrm{the long history of the theoretical understanding of entanglement of atom-field systems extending over many decades [1,2], intensive experimental investigations started only recently involving different systems [3]. }Entanglement lies at the heart of quantum mechanics, and is pr...
{ "timestamp": "2005-03-10T20:41:45", "yymm": "0503", "arxiv_id": "quant-ph/0503106", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503106" }
\section{Introduction} Power-law distributions taking the form \begin{equation}\label{eq:power-law} f(i) = C \ i^{- \tau}, \end{equation} where $C$ and $\tau$ are positive constants, are abundant in nature \cite{SORN00}. The constant $\tau$ is called the {\em exponent} of the distribution. Examples of such distributio...
{ "timestamp": "2005-03-23T20:33:13", "yymm": "0503", "arxiv_id": "physics/0503184", "language": "en", "url": "https://arxiv.org/abs/physics/0503184" }
\section{Introduction} In a remarkable paper \cite{MW} Mehlig and Wilkinson propose a simple derivation of Gutzwiller's \cite{Gutzwiller} approximation% \begin{equation} \widetilde{\rho }_{\text{Gutz}}(E)=\frac{1}{\pi \hbar }\func{Re}\sum_{po}% \frac{T_{po}i^{\nu _{po}}}{\sqrt{|\det (S_{po}-I)|}}e^{i\mathcal{A}% _{po}...
{ "timestamp": "2005-03-30T15:51:49", "yymm": "0503", "arxiv_id": "math/0503708", "language": "en", "url": "https://arxiv.org/abs/math/0503708" }
\section*{Introduction} Let ${\cal P} \subset {\NZQ R}^N$ be an integral convex polytope, i.e., a convex polytope each of whose vertices has integer coordinates. Let $K[{\bold x}, {\bold x}^{-1}, t] = K[x_1, x_1^{-1}, \ldots, x_N, x_N^{-1}, t]$ denote the Laurent polynomial ring in $(N + 1)$ variables over a field...
{ "timestamp": "2005-03-29T11:19:41", "yymm": "0503", "arxiv_id": "math/0503666", "language": "en", "url": "https://arxiv.org/abs/math/0503666" }
\section{Introduction} Recall that the $p$-rank of a finite group $G$, $\mathrm{rk} _{p}(G)$, is the largest rank of an elementary abelian $p$-subgroup of $G$ and that the rank of a finite group $G$, $\mathrm{rk} (G)$, is the maximum of $\mathrm{rk} _{p}(G)$ taken over all primes $p$. We can define the homotopy rank...
{ "timestamp": "2005-12-02T16:21:20", "yymm": "0503", "arxiv_id": "math/0503746", "language": "en", "url": "https://arxiv.org/abs/math/0503746" }
\section{I. Introduction} A photonic crystal slab (PhCS) is a layer of dielectric where refractive index is periodically modulated within the plane of the slab\cite{phcs_old1,phcs_old2,Johnson:1999}. Such devices have attracted much attention because of their potential applications to various optoelectronic devices an...
{ "timestamp": "2005-03-21T22:27:20", "yymm": "0503", "arxiv_id": "physics/0503170", "language": "en", "url": "https://arxiv.org/abs/physics/0503170" }
\section{Introduction} Factorization of large integers is important to many areas of pure mathematics and has practical applications in applied math including cryptography. This subject has been under intense study for many years \cite{CrPo2}; improvements in the methodology are especially desired for computational ...
{ "timestamp": "2005-09-21T02:04:20", "yymm": "0503", "arxiv_id": "physics/0503159", "language": "en", "url": "https://arxiv.org/abs/physics/0503159" }
\section*{1. Introduction} \mbox{}\hspace{6mm}The coherent states introduced by Schr\"{o}dinger [1] and Glauber [2] are the eigenstates of the boson annihilation operator, and have widespread applications in the fields of physics [3$-$7]. However, in all the cases the quanta involved are uncharged. In 1976, Bhaumik et...
{ "timestamp": "2005-04-05T14:39:09", "yymm": "0503", "arxiv_id": "quant-ph/0503076", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503076" }
\section{Introduction} We establish the existence and uniqueness in Sobolev spaces of strong solutions to the unsteady fluid-structure interaction problem consisting of a nonlinear large-displacement elastic solid coupled to a viscous incompressible Newtonian fluid. The fluid motion is governed by the incompressible...
{ "timestamp": "2005-03-21T18:10:00", "yymm": "0503", "arxiv_id": "math/0503431", "language": "en", "url": "https://arxiv.org/abs/math/0503431" }
\section{Introduction.}\setcounter{subsection}{1} This is the first part of a series of articles where we are going to develop theory of valuations on manifolds generalizing the classical theory of continuous valuations on convex subsets of an affine space. In this article we still work only with linear spaces. In the...
{ "timestamp": "2005-08-23T08:57:01", "yymm": "0503", "arxiv_id": "math/0503397", "language": "en", "url": "https://arxiv.org/abs/math/0503397" }
\section{Introduction} In previous publications\ccite{AV90,AV91,RA95,Vaid96,Vaidman96b}, an objective description of a quantum system in the time interval between two complete measurements has been proposed in terms of \emph{two} state vectors, together with a new type of physical quantity, the ``weak value" o...
{ "timestamp": "2005-08-23T04:24:49", "yymm": "0503", "arxiv_id": "quant-ph/0503225", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503225" }
\section{Introduction.} The notion of perfect lattices came up about 100 years ago in papers by Korkine and Zolotarev and especially Voronoi \cite{Vor} during the study of dense lattice sphere packings. If the centers of the spheres in a packing form a lattice $\Lambda $ in Euclidean space $({\mathbb{R}} ^n,(,))$ th...
{ "timestamp": "2005-03-22T08:45:30", "yymm": "0503", "arxiv_id": "math/0503446", "language": "en", "url": "https://arxiv.org/abs/math/0503446" }
\section{Introduction} One of the major issues of hadron physics is the determination of masses and coupling constants for the different baryon resonances. These extracted parameters serve as a test of different QCD-based models~\cite{Met01,The01}. As will be demonstrated in this work, coupled channels effects are lar...
{ "timestamp": "2005-08-03T12:52:09", "yymm": "0503", "arxiv_id": "nucl-th/0503013", "language": "en", "url": "https://arxiv.org/abs/nucl-th/0503013" }
\section{Discrete Space-Time and the Fermionic Projector} \label{sec1} Let~$H$ be a finite-dimensional complex vector space, endowed with a sesquilinear form $\mbox{$< \!\!$ \nolinebreak} .|. \mbox{\nolinebreak $>$} \::\: H \times H \to \mathbb{C}$, i.e.\ for all $u, v, w \in H$ and $\alpha, \beta \in \mathbb{C}$, \beg...
{ "timestamp": "2007-02-16T09:47:32", "yymm": "0503", "arxiv_id": "math-ph/0503069", "language": "en", "url": "https://arxiv.org/abs/math-ph/0503069" }
\section{} \section{INTRODUCTION} The production of intermediate mass fragments (IMF, Z$\ge$3) is one of the main features of the nuclear reactions in the Fermi energy regime (i.e. at bombarding energies of 30-50 MeV/nucleon), and can arise from various mechanisms \cite{libri}. Compound systems, formed in central...
{ "timestamp": "2005-03-10T22:05:26", "yymm": "0503", "arxiv_id": "nucl-ex/0503005", "language": "en", "url": "https://arxiv.org/abs/nucl-ex/0503005" }
\section{Computation} The silicon transistor was invented about half a century ago. Since then the semiconductor technology has grown at a rapid pace to pervade almost all aspects of our lives. This growth has been so explosive---doubling the number of transistors on a chip every 18-24 months according to Moore's law-...
{ "timestamp": "2005-03-07T15:58:03", "yymm": "0503", "arxiv_id": "quant-ph/0503068", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503068" }
\section{} A photodetector that can count the number of photons in a pulse, a so-called photon number resolving detector (PNRD) is an essential tool for all quantum optics experiments and quantum info-commnunication technologies. Recent theoretical developments have shown that single photons, combined with linear opti...
{ "timestamp": "2005-03-04T03:33:44", "yymm": "0503", "arxiv_id": "quant-ph/0503050", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503050" }
\section{Introduction} The theory of relativistic wave equations (RWE) is one of the oldest topics in theoretical physics. As usual, the theory of RWE closely relates with higher spin formalisms. However, at present there is no a fully adequate formalism for description of higher--spin fields (all widely accepted highe...
{ "timestamp": "2007-05-10T06:06:27", "yymm": "0503", "arxiv_id": "math-ph/0503058", "language": "en", "url": "https://arxiv.org/abs/math-ph/0503058" }
\section{Introduction} Quantum entanglement is one of the most interesting and debated properties of quantum mechanics. It has become an essential resource for the quantum communication created in recent years, with some potential applications such as quantum cryptography \cite{Bennett84,Ekert91} and quantum teleportat...
{ "timestamp": "2005-03-10T12:06:42", "yymm": "0503", "arxiv_id": "quant-ph/0503103", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503103" }
\section*{Acknowledgments} The authors are grateful to A.~Lambrecht and S.~Reynaud for information on the computation details in Ref.~\cite{7}. V.B.B. and C.R. were supported by CNPq. R.S.D. acknowledges financial support from the Petroleum Research Foundation through ACS-PRF No. 37452-G. The work of E.F. is supported ...
{ "timestamp": "2006-02-23T22:42:44", "yymm": "0503", "arxiv_id": "quant-ph/0503134", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503134" }
\section{Introduction} \vspace*{-0.5pt} \noindent The computational method based on the lattice Boltzmann equation (LBE) is relatively new for fluid dynamics. It is part of the paradigm of simulating complex physical phenomena, in particular fluid flows, that are based on the observation that the interactions of qua...
{ "timestamp": "2005-03-28T05:08:22", "yymm": "0503", "arxiv_id": "physics/0503208", "language": "en", "url": "https://arxiv.org/abs/physics/0503208" }
\section{Introduction} In quantum mechanics, the Schr\"odinger equations which can be completely solved by algebraic methods are rather exceptional. One can attenuate the condition of complete solvability by asking that, at least, a few eigenvectors can be obtained by an algebraic method. The so called ``quasi exactly...
{ "timestamp": "2005-03-15T17:33:01", "yymm": "0503", "arxiv_id": "quant-ph/0503137", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503137" }
\section{Introduction} The interactions between trapped ultra-cold atoms govern many interesting collective quantum phenomena, ranging from Bose-Einstein condensation \cite{Leggett} to recently observed fermion superfluid \cite{bcs}. At sufficiently low energies, it is known that short ranged atom-atom interactions ca...
{ "timestamp": "2005-07-25T04:50:58", "yymm": "0503", "arxiv_id": "quant-ph/0503020", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503020" }
\section{Introduction and Motivation} Let $\Sigma_{g,p}$ be an orientable surface of genus $g$ with $p$ boundary components. For instance, $\Sigma_{0,0}$ is the 2-sphere, $\Sigma_{1,0}$ is the torus, and $\Sigma_{0,1}$ corresponds to the disk. A \emph{geometric braid} on $\Sigma_{g,p}$ based at $\mathcal...
{ "timestamp": "2005-03-29T10:04:36", "yymm": "0503", "arxiv_id": "math/0503658", "language": "en", "url": "https://arxiv.org/abs/math/0503658" }
\section*{Introduction} \noindent The internet has changed the way people communicate, work, and do business. One example are online auction sites, the largest being eBay with its more than $150$ million registered users world wide \cite{Economist}. An interesting aspect of eBay's success is its transparency. The marke...
{ "timestamp": "2006-07-11T18:06:59", "yymm": "0503", "arxiv_id": "physics/0503138", "language": "en", "url": "https://arxiv.org/abs/physics/0503138" }
{ "timestamp": "2005-03-15T16:06:44", "yymm": "0503", "arxiv_id": "nucl-ex/0503009", "language": "en", "url": "https://arxiv.org/abs/nucl-ex/0503009" }
\section{Introduction} \label{sec:intro} In isotropic turbulence, structure functions are among the favorite statistical indicators of intermittency. The (longitudinal) structure function of order $p$ is defined by $S_p({r})\equiv \langle \delta{v}_{\parallel}({r})^p\rangle$. The K41 theory \cite{KOLMOGOROV-1941-DA...
{ "timestamp": "2005-03-17T12:58:12", "yymm": "0503", "arxiv_id": "physics/0503142", "language": "en", "url": "https://arxiv.org/abs/physics/0503142" }
\section{} While phase transitions are striking phenomena in infinite systems, it has been difficult to establish them in finite systems such as atomic nuclei, because their signatures are often obscured by the quantum fluctuations~\cite{LA84}. Since most nuclei have the superfluidity in their ground states, \textit{...
{ "timestamp": "2005-09-14T04:41:14", "yymm": "0503", "arxiv_id": "nucl-th/0503066", "language": "en", "url": "https://arxiv.org/abs/nucl-th/0503066" }
\chapter{Beables for Quantum Control} \label{chap-control} Beable methods offer two potential benefits in simulating quantum systems. We have already discussed how beables can help to define iterative numerical algorithms for simulating dynamics over an associated classical state space. But the beale framework also ...
{ "timestamp": "2005-03-21T03:34:08", "yymm": "0503", "arxiv_id": "quant-ph/0503169", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503169" }
\section{Introduction} \subsection{Background} A basic question in quantum mechanics is how to obtain information about the state of a given physical system by using suitable measurements. Even in case many identically prepared copies of the system are available, it is a nontrivial task to devise a measurement proced...
{ "timestamp": "2005-03-31T18:03:35", "yymm": "0503", "arxiv_id": "quant-ph/0503239", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503239" }
\section{Introduction} This workshop deals essentially with microscopic nuclear structure which has the goal to derive the properties of atomic nuclei from the `elementary' forces between nucleons. Thus, the input for microscopic nuclear structure calculations are the `basic' nuclear forces: two-nucleon forces (2NF), ...
{ "timestamp": "2005-03-10T03:57:17", "yymm": "0503", "arxiv_id": "nucl-th/0503025", "language": "en", "url": "https://arxiv.org/abs/nucl-th/0503025" }
\section{Introduction} About a decade ago the Lorentz Integral Transform (LIT) method has been proposed in order to perform ab initio calculations of electroweak reactions with nuclei into the continuum \cite{LIT}. The great advantage of the method lies in the fact that a calculation of continuum wave functions is n...
{ "timestamp": "2005-03-11T11:25:11", "yymm": "0503", "arxiv_id": "nucl-th/0503033", "language": "en", "url": "https://arxiv.org/abs/nucl-th/0503033" }
\section{Introduction} The quantum ergodicity theorem by Shnirelman, Zelditch and Colin de Verdi{\`e}re, \cite{Shn74,Zel87,Col85}, states that almost all eigenfunctions of a quantum mechanical Hamilton operator become equidistributed in the semiclassical limit if the underlying classical system is ergodic. Cons...
{ "timestamp": "2005-03-17T13:09:54", "yymm": "0503", "arxiv_id": "math-ph/0503045", "language": "en", "url": "https://arxiv.org/abs/math-ph/0503045" }
\section{Introduction In \cite{Wer1}, we introduced a theory of {\it contractive Markov systems (CMS)} which provides a unifying framework in so-called 'fractal' geometry. It extends the known theory of {\it iterated function systems (IFS) with place dependent probabilities}, which are contractive on average, \cite{BD...
{ "timestamp": "2005-05-13T13:08:47", "yymm": "0503", "arxiv_id": "math/0503644", "language": "en", "url": "https://arxiv.org/abs/math/0503644" }
\section*{This is an unnumbered first-level section head} \par \section {Stochastic Optimization} . \subsection{Black-Scholes Formula} \par Black-Scholes' formula starts from heat equation \begin{equation} {\partial u\over {\partial t}}={1\over 2} {\partial^2 u^2\over {\partial^2 x^2}}, \end{equation} the solution is...
{ "timestamp": "2005-03-22T07:45:48", "yymm": "0503", "arxiv_id": "math/0503444", "language": "en", "url": "https://arxiv.org/abs/math/0503444" }
\section{Introduction} Since the beginning of quantum mechanics, the hydrogen atom has been one of the best studied models in physics \cite{BeS57,BaJ83}. In a large number of textbooks and monographs, therefore, its (well--known) solutions from either the nonrelativistic Schr\"odinger equation or Dirac's (relativist...
{ "timestamp": "2005-03-01T14:47:45", "yymm": "0503", "arxiv_id": "physics/0503011", "language": "en", "url": "https://arxiv.org/abs/physics/0503011" }
\section{Introduction} \label{sec_introduction} Since the famous result of Jarnik \cite{JARNIK1} concerning Diophantine approximation and Hausdorff dimension, the following problem has been widely encountered and studied in various mathematical situations. \smallskip Let $\{x_n\}_{n\in\mathbb{N}}$ be a sequence in a...
{ "timestamp": "2005-03-21T13:49:18", "yymm": "0503", "arxiv_id": "math/0503419", "language": "en", "url": "https://arxiv.org/abs/math/0503419" }
\section{Introduction} On the Silver Jubilee of the founding of the Alternative Natural Philosophy Association it was possible to present a new piece of natural philosophy\cite{SciCos04, LNsub04, LJNiprep04} which the authors believe has profound implications for the new field of particle-astrophysics/cosmology; SLAC ...
{ "timestamp": "2005-03-23T14:34:58", "yymm": "0503", "arxiv_id": "physics/0503181", "language": "en", "url": "https://arxiv.org/abs/physics/0503181" }
\section{Introduction and main result} \label{ref-1-0} Below $k$ is an algebraically closed field of characteristic zero and $A = k[x,y,z]$. We will consider the Hilbert scheme $\Hilb_{n}(\PP^{2})$ parametrizing zero-dimensional subschemes of length $n$ in $\PP^2$. It is well known that this is a smooth connected proj...
{ "timestamp": "2005-03-31T12:21:41", "yymm": "0503", "arxiv_id": "math/0503731", "language": "en", "url": "https://arxiv.org/abs/math/0503731" }
\section{Introduction} It is well known that the resolution of breaking singularities in dispersive media occurs through generation of short-wavelength nonlinear oscillations. The wave-like transition between two smooth or constant hydrodynamic states is generally called a dispersive shock (or an undular bore, espec...
{ "timestamp": "2006-02-06T22:28:41", "yymm": "0503", "arxiv_id": "nlin/0503010", "language": "en", "url": "https://arxiv.org/abs/nlin/0503010" }
\section{Introduction} Forecasting from time series data necessarily involves an attempt to understand uncertainty; volatility or the standard deviation is a key measure of this uncertainty and is found to be time-varying in most financial time series. The seminal work of Engle \cite{Engle}, that first treated volati...
{ "timestamp": "2006-01-05T10:49:25", "yymm": "0503", "arxiv_id": "physics/0503157", "language": "en", "url": "https://arxiv.org/abs/physics/0503157" }
\section{Introduction} There has been considerable effort directed toward understanding how measurements can be utilized in quantum computation \cite{everyone,briegelcluster} - either as part of error correction, or as a method of replacing some (or all) of the coherent processes of the standard unitary circuit model....
{ "timestamp": "2005-03-16T18:23:11", "yymm": "0503", "arxiv_id": "quant-ph/0503151", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503151" }
\section{Introduction} Quantum information, as well as classical information, can be carried either by discrete or continuous variable (CV) systems. The latter have attracted an increasing interest during last years \cite{cvbook}. In particular quantum error correction (QEC) techniques have been extended to this frame...
{ "timestamp": "2005-07-21T15:14:03", "yymm": "0503", "arxiv_id": "quant-ph/0503003", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503003" }
\section{Introduction}\label{intro} There are many problems in science which are too complex for numerical solution as they stand. Examples include turbulence and other problems where multiple scales must be taken into account. Such problems must be reduced to more amenable forms before one computes. In the present pap...
{ "timestamp": "2005-03-27T00:39:47", "yymm": "0503", "arxiv_id": "math/0503612", "language": "en", "url": "https://arxiv.org/abs/math/0503612" }
\section{Introduction} As it was recognized already in the 1930's by some of the founding fathers of modern physics, the notion of entanglement is one of the most intriguing properties of quantum mechanics, distinguishing the quantum world form the classical one \cite{Einstein35,Schrodinger35}. Moreover, quantum entan...
{ "timestamp": "2005-05-15T10:59:32", "yymm": "0503", "arxiv_id": "quant-ph/0503123", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503123" }
\section{Introduction} During the last decades applications based on the most radical predictions and features of quantum mechanics, namely the existence of quantum superpositions and the entanglement, have been conceived \cite{nielsen}. Both of these features lie at the root of a new class of quantum technologies ex...
{ "timestamp": "2006-02-08T14:37:15", "yymm": "0503", "arxiv_id": "quant-ph/0503127", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503127" }
\section{Introduction} The theory of elliptic hypergeometric series has been rapidly developing. In \cite{FreTur}, Frenkel and Turaev took the initiative introducing a notion of modular hypergeometric functions ${}_{r+1}{\omega}_r$ as an elliptic analogue of the very-well-poised balanced basic hypergeometric series ...
{ "timestamp": "2005-03-31T06:38:49", "yymm": "0503", "arxiv_id": "math/0503725", "language": "en", "url": "https://arxiv.org/abs/math/0503725" }
\section{Introduction} The laws of quantum mechanics do not allow the perfect discrimination of two non-orthogonal quantum states $\ket{\psi_1}$ and $\ket{\psi_2}$. Consequently, given a set of non-orthogonal states $\{\ket{\psi_1},\ket{\psi_2}\}$, it is also impossible to find out with probability one whether two quan...
{ "timestamp": "2005-06-28T10:47:25", "yymm": "0503", "arxiv_id": "quant-ph/0503012", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503012" }
\section*{I INTRODUCTION} Extensive literature exists on the possible suppression~\cite{review}- \cite{langevin} of the $J/\psi$ mesons in a quark-gluon plasma and their proposed regeneration~\cite{Thews}. Among the well known mechanisms of $J/\psi$ dissociation the one due to gluonic bombardment~\cite{xu} deserves s...
{ "timestamp": "2005-03-11T15:18:00", "yymm": "0503", "arxiv_id": "nucl-th/0503034", "language": "en", "url": "https://arxiv.org/abs/nucl-th/0503034" }
\section{introduction} The folding probability ($p_{fold}$) of a protein conformation saved along a Monte Carlo or molecular dynamics (MD) trajectory is the probability to fold before unfolding \cite{Du:On}. It is a useful measure of kinetic distance from the folded, i.e., functional state, and can be used to validat...
{ "timestamp": "2005-03-11T15:11:06", "yymm": "0503", "arxiv_id": "q-bio/0503014", "language": "en", "url": "https://arxiv.org/abs/q-bio/0503014" }
\section{Introduction} In this talk, using the methods of papers \cite{Pra}, \cite{Pre}, and \cite {Pl}, we will consider the classical-statistical limit of quantum mechanics for a system with continuous evolution spectrum (We have discussed how classical-statistical limit of quantum mechanics becomes the proper class...
{ "timestamp": "2005-03-24T00:07:23", "yymm": "0503", "arxiv_id": "quant-ph/0503191", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503191" }
\section{Introduction} In a series of papers by the author starting in 80's of the previous century \cite{i} a simple method for constructing integrable systems together with their soliton-like solutions was proposed. This method requires only two calculational steps -- solving a system of linear algebraic equation...
{ "timestamp": "2005-03-16T18:25:38", "yymm": "0503", "arxiv_id": "math-ph/0503043", "language": "en", "url": "https://arxiv.org/abs/math-ph/0503043" }
\section{Introduction} Entanglement is the most puzzling feature of quantum mechanics. The surprising behaviour of entangled states has been stressed by Einstein, Podolsky, and Rosen (EPR) \cite{epr}, who considered a two--particle system in an entangled state and showed that the assumptions of locality, realism and c...
{ "timestamp": "2005-03-15T17:06:04", "yymm": "0503", "arxiv_id": "quant-ph/0503135", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503135" }
\section{Introduction} In biological just as in physical computer simulations, one may study phenomena microsopically or macroscopically. Microscopic physics simulations use Monte Carlo or Molecular Dynamics methods since half a century e.g. to study single atoms. Macroscopic simulations average over many atoms and s...
{ "timestamp": "2005-03-12T18:26:39", "yymm": "0503", "arxiv_id": "physics/0503101", "language": "en", "url": "https://arxiv.org/abs/physics/0503101" }
\subsection{\em ...}; the following \renewcommand{\subsection}{\@startsection {subsection}% {2}% {0mm}% {-\baselineskip}% {0.15\baselineskip}% {\normalfont\normalsize}}% \makeatother \setlength{\oddsidemargin}{+5mm} \setlength{\textheight}{215mm} \setlength{\textwidth}{159mm} \setlength{\col...
{ "timestamp": "2005-03-10T17:38:29", "yymm": "0503", "arxiv_id": "physics/0503087", "language": "en", "url": "https://arxiv.org/abs/physics/0503087" }
\section{Introduction} Detailed models of coupling at the Core Mantle Boundary (CMB) have been put forward to explain the more and more accurate measurements of the nutations of the Earth \cite{wahr81,deha97,math02}. The nutations of the Earth induce a differential rotation, about an equatorial axis, between the mantl...
{ "timestamp": "2006-11-06T19:07:38", "yymm": "0503", "arxiv_id": "physics/0503038", "language": "en", "url": "https://arxiv.org/abs/physics/0503038" }
\section{Introduction} A key question of the heavy ion program at the Relativistic Heavy Ion Collider (RHIC) is to understand whether the hot and dense matter produced in the midst of the relativistic heavy ion collisions undergoes a transition to and from a quark gluon plasma (QGP) phase before it hadronizes. The stud...
{ "timestamp": "2005-10-10T11:41:29", "yymm": "0503", "arxiv_id": "nucl-ex/0503023", "language": "en", "url": "https://arxiv.org/abs/nucl-ex/0503023" }
\section{Introduction} One of the first results in Lie representation theory is that the symmetric powers $\operatorname{S}^n(\mathbb C^2)$ (for $n\in\mathbb Z_{\geqslant0}$) of the standard representation $\mathbb C^2$ of $\operatorname{SU}(2)$ are representatives for the list of equivalence classes of the irreducible...
{ "timestamp": "2005-03-24T15:00:36", "yymm": "0503", "arxiv_id": "math/0503542", "language": "en", "url": "https://arxiv.org/abs/math/0503542" }
\section{Introduction} Libor (London Inter Bank Overnight Rates) are the interest rates for Eurodollar deposits. Libor is one of the main instruments for interest rates in the debt market, and is widely used for multifarious purposes in finance. The main focus of this paper is on the properties of Libor, and in particu...
{ "timestamp": "2005-03-15T21:25:23", "yymm": "0503", "arxiv_id": "physics/0503126", "language": "en", "url": "https://arxiv.org/abs/physics/0503126" }
\section{INTRODUCTION} This work is the third of a series of papers devoted to the construction and presentation of a consistent understanding of the quantum mechanical description of electromagnetic radiation, based on the assumption that the photons, and not the electromagnetic fields, constitute the basic ontology; ...
{ "timestamp": "2005-04-15T16:10:50", "yymm": "0503", "arxiv_id": "quant-ph/0503023", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503023" }
\section{Mechanical context and setting of the equations} We consider here a concentrated suspension of particles in a Couette flow. Examples of such suspensions are numerous: tooth pastes, cements, the blood. As opposed to some other complex fluids such as polymeric liquids for which elaborate rheological models, ...
{ "timestamp": "2005-03-21T16:19:07", "yymm": "0503", "arxiv_id": "math/0503425", "language": "en", "url": "https://arxiv.org/abs/math/0503425" }
\section{Introduction} In this paper we present multiscale models of cancer tumor invasion, and the scientific-computing methodology for solving the model equations. The specific model treated here has components at the molecular level (incorporated via diffusion and taxis processes), the cellular level (incorporated...
{ "timestamp": "2005-04-15T00:08:56", "yymm": "0503", "arxiv_id": "q-bio/0503023", "language": "en", "url": "https://arxiv.org/abs/q-bio/0503023" }
\section{Introduction} \label{s:intro} Let $A$ be an abelian variety over a number field $K$ and $F$ an algebraic extension of $K$. The quotient $A(F)/A(F)_{\mathrm{tor}}$ is always torsion-free and abelian. When $F$ is a number field, the Mordell-Weil theorem asserts that it is finitely generated and therefore fr...
{ "timestamp": "2005-03-18T13:35:16", "yymm": "0503", "arxiv_id": "math/0503378", "language": "en", "url": "https://arxiv.org/abs/math/0503378" }
\section{Introduction} Entanglement is one of the main features of quantum mechanics. The most studied example of quantum entanglement is the one of the two spin 1/2 particles as presented by David Bohm \cite{bohm01}: more specifically in the situation where the joint quantum entity of the two spin 1/2 particles is in...
{ "timestamp": "2005-03-08T21:06:37", "yymm": "0503", "arxiv_id": "quant-ph/0503082", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503082" }
\section{Introduction} \setcounter{equation}{0} We are concerned with the following Euler equations for the homogeneous incompressible fluid flows in $\Omega \subset \Bbb R^3$. \begin{eqnarray} \frac{\partial v}{\partial t} +(v\cdot \nabla )v &=-\nabla p , \\ \textrm{div }\, v =0 , &\\ v(x,0)=v_0 (x), & \en...
{ "timestamp": "2005-03-22T16:12:24", "yymm": "0503", "arxiv_id": "math/0503406", "language": "en", "url": "https://arxiv.org/abs/math/0503406" }
\section{Introduction} Entanglement lies at the heart of quantum information and quantum computation \cite{Nielsen1}. It is responsible for most of quantum phenomena, such as quantum teleportation, dense coding, quantum cryptography \cite{Bennett}. Now it is regarded as a kind of useful resource in quantum information ...
{ "timestamp": "2005-03-15T08:55:56", "yymm": "0503", "arxiv_id": "quant-ph/0503131", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503131" }
\section*{Introduction} The aim of this paper is to bring together some ideas of \cite{BMPS} and \cite{EGLMS}. A germ of a vector field or of a 1-form on the complex affine space ${\Bbb C}^n$ at the origin not vanishing in a punctured neighbourhood of it has a topological invariant~--- the Poincar\'e--Hopf index. The ...
{ "timestamp": "2005-03-21T15:31:35", "yymm": "0503", "arxiv_id": "math/0503422", "language": "en", "url": "https://arxiv.org/abs/math/0503422" }
\section{Introduction} Besides continuing controversies over its implication on our understanding of the physical world \cite{Ein35,Sel88,Bel64,Boh93,Hol93}, quantum mechanics is still revealing its hidden aspects, now in a form of quantum information processing \cite{Nie00}. The coherent-state (CS) picture has been su...
{ "timestamp": "2008-08-12T09:39:58", "yymm": "0503", "arxiv_id": "quant-ph/0503100", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503100" }
\section{ Introduction.} \label{intro} \medskip Let $S^d$ denote the unit sphere in the Euclidean space ${\mathbb R}^{d+1}\; (d \ge 1)$. Let $N$ be a natural number $(N \ge 2)$, and let $\omega_N:=\{x_{1}, \ldots,x_{N}\}$ be a collection of $N$ distinct points on $S^d$. The Riesz $s$-energy ($s \ge 0$) associated wit...
{ "timestamp": "2005-03-27T22:08:40", "yymm": "0503", "arxiv_id": "math-ph/0503063", "language": "en", "url": "https://arxiv.org/abs/math-ph/0503063" }
\section{INTRODUCTION} \label{sec:intro} The primary goal of the relativistic heavy-ion collider (RHIC) is to create and study matter at extremely high energy density. It is hypothesized that at the energy densities reached in central Au+Au reactions at RHIC, the matter created is composed of de-confined colored objec...
{ "timestamp": "2005-05-19T19:07:20", "yymm": "0503", "arxiv_id": "nucl-ex/0503010", "language": "en", "url": "https://arxiv.org/abs/nucl-ex/0503010" }
\section{Introduction} The theory of phase-space Schr\"{o}dinger equation \begin{equation} i\hbar \frac{\partial }{\partial t}\Psi (x,p,t)=H(x+i\hbar \partial _{p},-i\hbar \partial _{x})\Psi (x,p,t) \label{TVF} \end{equation}% corresponding to the quantization rules% \begin{equation} x_{j}\longmapsto x_{j}+i\hbar \f...
{ "timestamp": "2005-03-30T16:01:45", "yymm": "0503", "arxiv_id": "math/0503709", "language": "en", "url": "https://arxiv.org/abs/math/0503709" }
\section{Introduction} Usual quantum mechanics predicts the probabilities of alternatives specified at a moment in time and histories of such alternatives specified at a sequence of times. A single particle moving in one dimension provides a familiar example. The probability $p(\Delta)$ that the particle's positio...
{ "timestamp": "2005-07-16T01:52:31", "yymm": "0503", "arxiv_id": "quant-ph/0503182", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503182" }
\section{Introduction} The Kadomtsev-Petviashvili (KP) hierarchy is of central interest for integrable systems and includes several well-known partial differential equations such as the Korteweg-de Vries (KdV) and the KP equation. With pseudo-differential Lax operator $L$ given as \cite{dkjm,ost,dl1} \begin{equation} ...
{ "timestamp": "2006-02-21T16:07:29", "yymm": "0503", "arxiv_id": "math-ph/0503028", "language": "en", "url": "https://arxiv.org/abs/math-ph/0503028" }
\section{Introduction} The connection between orthogonal polynomials on the line and Toda lattices is rather well known \cite{Bere}, as well as the relations to the KP hierarchy \cite{AvM1}. Dynamical variables of the Toda lattice are arranged into a tri-diagonal Lax matrix, that can be viewed as a recurrence matrix f...
{ "timestamp": "2005-03-23T16:19:00", "yymm": "0503", "arxiv_id": "nlin/0503050", "language": "en", "url": "https://arxiv.org/abs/nlin/0503050" }
\section{Introduction} \label{s:intro} The dynamics of nonlinear waves is central to understanding the behaviour of a wide range of physical systems. Applications include Langmuir waves in plasmas ({e.g.\ }~\cite{handbook}), waves in optical fibres ({e.g.\ }~\cite{Agrawal,Kivshar}), and water waves ({e.g.\ }~\cite{Yue...
{ "timestamp": "2005-03-22T18:20:53", "yymm": "0503", "arxiv_id": "nlin/0503047", "language": "en", "url": "https://arxiv.org/abs/nlin/0503047" }
\section*{Abstract: } Let $X$ be a smooth projective toric surface, and ${\mathbb H}^d(X)$ the Hilbert scheme parametrising the length $d$ zero-dimensional subschemes of $X$. We compute the rational Chow ring $A^*({\mathbb H}^d(X))_{\mathbb Q}$. More precisely, if $T\subset X$ is the two-dimensional torus contained...
{ "timestamp": "2005-12-15T07:25:31", "yymm": "0503", "arxiv_id": "math/0503697", "language": "en", "url": "https://arxiv.org/abs/math/0503697" }
\section{Introduction} Annual influenza epidemics are responsible for the deaths of 250000 to 500000 people worldwide and cause illness in 5 to 15\% of the total population each year \cite{WHO_2}. The total direct and indirect costs associated with influenza in the USA are roughly \$10 billion \cite{Lave}, and the e...
{ "timestamp": "2005-06-16T18:55:40", "yymm": "0503", "arxiv_id": "q-bio/0503030", "language": "en", "url": "https://arxiv.org/abs/q-bio/0503030" }
\section{Introduction} By the use of the method of Lagrangians with covariant derivatives (MLCD) \cite{Manoff-1}, \cite{Manoff-1a} the different energy-momentum tensors and the covariant Noether's identities for a field theory as well as for a theory of continuous media can be found. On the basis of the $(n-1)+1$ proj...
{ "timestamp": "2005-03-11T13:07:31", "yymm": "0503", "arxiv_id": "physics/0503094", "language": "en", "url": "https://arxiv.org/abs/physics/0503094" }
\section{Introduction.} We denote by $\mathbb{N}$ the set of nonnegative integers, by $\mathbb{K}$ a field of characteristic zero. Let $I_{n} := \{ 1,2, \dots, n \}$. We will use the natural one-to-one correspondence between monomials $x^\alpha \in \mathbb{K}[x_{1}, \dots, x_{n}]$ and multiindices $\alpha \in \mathbb{...
{ "timestamp": "2005-03-30T11:07:04", "yymm": "0503", "arxiv_id": "math/0503701", "language": "en", "url": "https://arxiv.org/abs/math/0503701" }
\section*{DYNAMICS AND STATICS OF VORTICES ON A PLANE AND A SPHERE~--- I}\footnote{REGULAR AND CHAOTIC DYNAMICS V.~3, No.1, 1998\\Received October 1, 1997, revised manuscript received February 1, 1998} \begin{centering} A.\,V.\,BORISOV\\ Faculty of Mechanics and Mathematics, Department of Theoretical Mechanics Moscow ...
{ "timestamp": "2005-03-23T14:19:09", "yymm": "0503", "arxiv_id": "nlin/0503049", "language": "en", "url": "https://arxiv.org/abs/nlin/0503049" }
\section{Introduction} \label{sec:introduction} \subsection{The model} \label{sec:the_model} We observe $n$ pairs of random variables $(X_i, Y_i) \in \mathbb{R} \times \mathbb{R}$ independent and identically distributed satisfying \begin{equation} \label{eq:regression_model} Y_i = f(X_i) + \xi_i, \end{equation}...
{ "timestamp": "2005-03-30T18:03:49", "yymm": "0503", "arxiv_id": "math/0503715", "language": "en", "url": "https://arxiv.org/abs/math/0503715" }
\section{Introduction and description of the results}\label{s1} For a semigroup, $(S,\cdot)$, and an element, $a\in S$, one can consider the {\em variant} $(S,*_a)$ of $S$, for which the {\em deformed} or {\em sandwich} multiplication $*_a:S\times S\to S$ with the sandwich element $a$ is defined as follows: $x*_ay...
{ "timestamp": "2007-08-30T20:40:59", "yymm": "0503", "arxiv_id": "math/0503489", "language": "en", "url": "https://arxiv.org/abs/math/0503489" }
\section{Introduction} Quantum computation currently attracts a lot of attention since it is expected to solve some of computationally hard problems for a conventional digital computer~\cite{ref:1}. Numerous realizations of a quantum computer have been proposed to date. Among others, a liquid-state NMR (nuclear magn...
{ "timestamp": "2005-03-18T03:18:53", "yymm": "0503", "arxiv_id": "quant-ph/0503067", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503067" }
\section{Covariant cloner under local unitaries in dimension $d\times d$} Following the ideas presented in \cite{LNFC04}, we seek for a cloning transformation that (i) preserves separability, and (ii) maximizes the entanglement of the two clones resulting from any ME input state. We will characterize a cloner by consi...
{ "timestamp": "2005-03-16T13:02:28", "yymm": "0503", "arxiv_id": "quant-ph/0503148", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503148" }
\section{#1}} \newcommand{\subsect}[1]{\subsection{#1}} \newcommand{\subsubsect}[1]{\subsubsection{#1}} \parskip=1ex \oddsidemargin= -0.1cm \evensidemargin= 0cm \parindent=1.5em \textheight=22cm \textwidth=17cm \def\begin{equation}{\begin{equation}} \def\end{equation}{\end{equation}} \def\begin{eqnarray}{\b...
{ "timestamp": "2005-03-08T05:55:20", "yymm": "0503", "arxiv_id": "quant-ph/0503075", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503075" }
\section{Introduction} The field of atom optics has experienced a period of dramatic growth recently, largely due to the success of experiments on Bose-Einstein Condensation (BEC). \ The achievement of BEC itself was based largely on the success of evaporative cooling\cite{evap,evap2}. Unfortunately, evaporative cooli...
{ "timestamp": "2005-03-03T22:33:11", "yymm": "0503", "arxiv_id": "quant-ph/0503045", "language": "en", "url": "https://arxiv.org/abs/quant-ph/0503045" }
\section{Introduction} Nonlinear physics of DNA has experienced an enormous development in the previous years. There are many experimental data and theoretical results published about the nonlinear properties of DNA (for a review see, e.g., ~\cite{YAK}. The DNA molecule is a discrete system consisting of many atom...
{ "timestamp": "2006-03-27T22:25:01", "yymm": "0503", "arxiv_id": "nlin/0503062", "language": "en", "url": "https://arxiv.org/abs/nlin/0503062" }
\section{Introduction} The systematic solution to non-linear partial differential equations has prohibited many advances in mathematics and physics. These equations, contrary to standard theory and linear equations, appear disparate and unsolvable in the general case. In the past the solutions to these systems of eq...
{ "timestamp": "2005-03-25T05:29:28", "yymm": "0503", "arxiv_id": "physics/0503194", "language": "en", "url": "https://arxiv.org/abs/physics/0503194" }