id large_stringlengths 9 16 | title large_stringlengths 1 382 | abstract large_stringlengths 3 6.09k | publish_date date32 | update_date date32 | categories large listlengths 1 13 | authors large_stringlengths 3 62.8k |
|---|---|---|---|---|---|---|
chao-dyn/9409001 | Scaling and Dissipation in the GOY Shell Model | This is a paper about multi-fractal scaling and dissipation in a shell model
of turbulence, called the GOY model. This set of equations describes a one
dimensional cascade of energy towards higher wave vectors. When the model is
chaotic, the high-wave-vector velocity is a product of roughly independent
multipliers, one... | 1994-09-08 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Leo Kadanoff (The James Franck Institute, The University of Chicago),
Detlef Lohse (The James Franck Institute, The University of Chicago), Jane
Wang (The James Franck Institute, The University of Chicago), Roberto Benzi
(Department of Physics, University of Rome ``Tor Vergata'') |
chao-dyn/9408005 | Inclusion of Diffraction Effects in the Gutzwiller Trace Formula | The Gutzwiller trace formula is extended to include diffraction effects. The
new trace formula involves periodic rays which have non-geometrical segments as
a result of diffraction on the surfaces and edges of the scatter. | 1994-08-30 | 2016-08-14 | [
"chao-dyn",
"cond-mat",
"nlin.CD"
] | G. Vattay (Institute for Solid State Physics, E\"otv\"os University,
M\'uzeum krt. 6-8, H-1088 Budapest, Hungary), A. Wirzba (Institut f\"ur
Kernphysik, Technische Hochschule, Schlo{\ss}gartenstr. 9, D-64289 Darmstadt,
Germany) and P.E. Rosenqvist (Niels Bohr Institute, Blegdamsvej 17, DK-2100
Copenhagen O, Den... |
chao-dyn/9408004 | Averaged equations for Josephson junction series arrays with LRC load | We derive the averaged equations describing a series array of Josephson
junctions shunted by a parallel inductor-resistor-capacitor load. We assume
that the junctions have negligable capacitance ($\beta = 0$), and derive
averaged equations which turn out to be completely tractable: in particular the
stability of both i... | 1994-08-26 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Kurt Wiesenfeld (Georgia Tech), and James W. Swift (Northern Arizona
University) |
chao-dyn/9408003 | Temperature spectra in shear flow and thermal convection | We show that the $P_u(\om) \propto \om^{-7/3}$ shear velocity power spectrum
gives rise to a $P_\Theta (\om ) \propto \om^{-4/3}$ power spectrum for a
passively advected scalar, as measured in experiment [K. Sreenivasan, Proc. R.
Soc. London A {\bf 434}, 165 (1991)]. Applying our argument to high Rayleigh
number Raylei... | 1994-08-25 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Detlef Lohse (The James Franck Institute, The University of Chicago,
Chicago, IL, USA) |
chao-dyn/9408002 | Weakly Chaotic Population Dynamics in Random Ecological Networks | Population dynamics in random ecological networks are investigated by
analyzing a simple deterministic equation. It is found that a sequence of
abrupt changes of populations punctuating quiescent states characterize the
long time behavior. An asymptotic analysis is developed by introducing a
log-scaled time, and it is ... | 1994-08-10 | 2008-02-03 | [
"chao-dyn",
"nlin.CD",
"q-bio"
] | Shin-ichi Sasa (Department of physics, Kyoto University, Kyoto 606,
Japan; Address as of Aug. 16, 1994: Department of Pure and Applied
Sciences,College of Arts and Sciences, University of Tokyo,Komaba, Meguro-ku,
Tokyo 153, Japan), and Tsuyoshi Chawanya (Yukawa Institute for Theoretical
Physics, Kyoto 606, Japa... |
chao-dyn/9408001 | Non-deterministic chaos | Non-deterministic chaos is a new dynamical paradigm where a non-deterministic
system is influenced by random perturbations to produce the appearance of
complexity. The non-determinism is envisioned to occur only at a single point
in phase space, where many trajectories intersect. In the presence of external
random pert... | 1994-08-08 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | D. D. Dixon (Institute for Geophysics and Planetary Physics,
University of California, Riverside) |
chao-dyn/9407020 | Conditions on the Existence of Localized Excitations in Nonlinear
Discrete Systems | We use recent results that localized excitations in nonlinear Hamiltonian
lattices can be viewed and described as multiple-frequency excitations. Their
dynamics in phase space takes place on tori of corresponding dimension. For a
one-dimensional Hamiltonian lattice with nearest neighbour interaction we
transform the pr... | 1994-08-04 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | S. Flach |
chao-dyn/9407019 | Corrections to universal scaling in real maps | I discuss the universal aspects of scaling in period-doubling sequences in
families of maps of the real line possessing non-integer degree. I show that
the scaling behaviour in both the orbital and parameter spaces is governed by
the same sequence of eigenvalues of the linearized renormalization operator.
These eigenva... | 1994-08-04 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Keith Briggs |
chao-dyn/9407018 | Simple Maps with Fractal Diffusion Coefficients | We consider chains of one-dimensional, piecewise linear, chaotic maps with
uniform slope. We study the diffusive behaviour of an initially nonuniform
distribution of points as a function of the slope of the map by solving
Frobenius-Perron equation. For Markov partition values of the slope, we relate
the diffusion coeff... | 1994-08-03 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | R. Klages (Inst. f. Theoret. Physik, TU Berlin) and J.R. Dorfman
(IPST, Univ. of Maryland) |
chao-dyn/9407017 | Stability of Wavelengths and Spatiotemporal Intermittency in Coupled Map
Lattices | In relation to spatiotemporal intermittency, as it can be observed in coupled
map lattices, we study the stability of different wavelengths in competition.
Introducing a two dimensional map, we compare its dynamics with the one of the
whole lattice. We conclude a good agreement between the two. The reduced model
also a... | 1994-08-01 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | A. Lambert, R. Lima |
chao-dyn/9407016 | Anisotropy and scaling corrections in turbulence | Two parametrizations for second order velocity moments, the Batchelor
parametrization for the r-space structure function and a common parametrization
for the energy spectrum, $E(p)\propto p^{-5/3}\exp(-p/p_d)$, are examined and
compared. In particular, we investigate corrections to the local scaling
exponents induced b... | 1994-07-29 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | Detlef Lohse (1) and Axel M\"uller-Groeling (2) ((1) The James Franck
Institute, The University of Chicago, Chicago, IL, USA; (2) Department of
Physics, University of Toronto, Toronto, Ontario, Canada) |
chao-dyn/9407014 | A Solvable Nonlinear Reaction-Diffusion Model | We construct a coupled set of nonlinear reaction-diffusion equations which
are exactly solvable. The model generalizes both the Burger equation and a
Boltzman reaction equation recently introduced by Th. W. Ruijgrok and T. T. Wu. | 1994-07-29 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Max-Olivier Hongler, Ricardo Lima |
chao-dyn/9407015 | A Stochastic Process for the Dynamics of the Turbulent Cascade | Velocity increments over a distance r and turbulent energy dissipation on a
box of size r are well described by the multifractal models of fully developed
turbulence. These quantities and models however, do not involve
time-correlations and therefore are not a detailed test of the dynamics of the
turbulent cascade. If ... | 1994-07-29 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | R. Lima, R. Vilela Mendes |
chao-dyn/9407013 | Exact Lyapunov Exponent for Infinite Products of Random Matrices | In this work, we give a rigorous explicit formula for the Lyapunov exponent
for some binary infinite products of random $2\times 2$ real matrices. All
these products are constructed using only two types of matrices, $A$ and $B$,
which are chosen according to a stochastic process. The matrix $A$ is singular,
namely its ... | 1994-07-26 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | R. Lima, M. Rahibe |
chao-dyn/9407012 | Texture Segmentation by Local Bi-Orthogonal Decomposition | We investigate the ability of a local bi-orthogonal decomposition to build
texture segmentation of images. Using the structures associated to the local
decomposition of the image independent row and columns we perform a
segmentation, where the regions are defined by the property of having a smooth
variation of the corr... | 1994-07-26 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | J.A. Dente, R. Vilela Mendes, R. Lima |
chao-dyn/9407011 | Dynamic Scaling Function at the Quasiperiodic Transition to Chaos | We obtain a five-step approximation to the quasiperiodic dynamic scaling
function for experimental Rayleigh-Be'nard convection data. When errors are
taken into account in the experiment, the f(alpha) spectrum of scalings is
equivalent to just two of these five scales. To overcome this limitation, we
develop a robust te... | 1994-07-25 | 2015-06-24 | [
"chao-dyn",
"nlin.CD"
] | Ronnie Mainieri and Robert Ecke |
chao-dyn/9407010 | The Limits of Mathematics---Extended Abstract | We summarize four different versions of our course notes on the limits of
mathematics. | 1994-07-25 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | G.J. Chaitin (IBM Research Division) |
chao-dyn/9407009 | The Limits of Mathematics---Fourth Version | This is yet another version of the course notes in chao-dyn/9407003. Here we
use m-expressions more aggressively to further reduce the constants in our
information-theoretic incompleteness theorems. Our main theorems are: 1) an
N-bit formal axiomatic system cannot enable one to exhibit any specific object
with program-... | 1994-07-23 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | G.J. Chaitin (IBM Research Division) |
chao-dyn/9407008 | Rayleigh-B\'{e}nard Convection; Patterns, Chaos, Spatiotemporal Chaos
and Turbulence | A coupled map lattice for convection is proposed, which consists of Eulerian
and Lagrangian procedures. Simulations of the model not only reproduce a
wide-range of phenomena in Rayleigh-B\'{e}nard convection experiments but also
lead to several prediction of novel phenomena there: For small aspect ratios,
the formation... | 1994-07-22 | 2015-06-24 | [
"chao-dyn",
"nlin.CD",
"nlin.PS",
"patt-sol"
] | Tatsuo Yanagita (Tokyo Institute of Technology) and Kunihiko Kaneko
(University of Tokyo) |
chao-dyn/9407007 | Characterization of the transition from defect- to phase-turbulence | For the complex Ginzburg-Landau equation on a large periodic interval, we
show that the transition from defect- to phase-turbulence is more accurately
described as a smooth crossover rather than as a sharp continuous transition.
We obtain this conclusion by using a powerful parallel computer to calculate
various order ... | 1994-07-21 | 2009-10-22 | [
"chao-dyn",
"nlin.CD",
"nlin.PS",
"patt-sol"
] | David A. Egolf (Department of Physics and Center for Nonlinear and
Complex Systems, Duke University) and Henry S. Greenside (Departments of
Physics and Computer Science and Center for Nonlinear and Complex Systems,
Duke University) |
chao-dyn/9407006 | The Limits of Mathematics---Third Version | This is yet another version of the course notes in chao-dyn/9407003. Here we
change the universal Turing machine that is used to measure program-size
complexity so that the constants in our information-theoretic incompleteness
theorems are further reduced. This is done by inventing a more complicated
version of lisp in... | 1994-07-20 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | G.J. Chaitin (IBM Research Division) |
chao-dyn/9407005 | The Limits of Mathematics---Alternative Version | This is an alternative version of the course notes in chao-dyn/9407003. The
previous version is based on measuring the size of lisp s-expressions. This
version is based on measuring the size of what I call lisp m-expressions, which
are lisp s-expressions with most parentheses omitted. This formulation of
algorithmic in... | 1994-07-17 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | G.J. Chaitin (IBM Research Division) |
chao-dyn/9407004 | Nonlinear dynamics in one and two dimensional arrays of discrete
Josephson elements | Discrete arrays of Josephson junction elements differ from their continuum
counterparts in two essential ways: i) localized dynamic states in discrete
arrays, which are not present in the corresponding continuum system, can
interact with other excitations that are present; ii) fluxoid quantization for
the non-supercond... | 1994-07-11 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | R. D. Parmentier (Department of Physics, University of Salerno,
I-84081 Baronissi (SA), Italy) |
chao-dyn/9407003 | The Limits of Mathematics---The Book | This is a revised version of the course notes handed to each participant at
the limits of mathematics short course, Orono, Maine, June 1994. | 1994-07-07 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | G.J. Chaitin (IBM Research Division) |
chao-dyn/9407002 | Remarks on the mean field dynamics of networks of chaotic elements | Fluctuations of the mean field of a globally coupled dynamical systems are
discussed. The origin of hidden coherence is related with the instability of
the fixed point solution of the self-consistent Perron-Frobenius equation.
Collective dynamics in globally coupled tent maps are re-examined, both with
the help of dire... | 1994-07-07 | 2015-06-24 | [
"chao-dyn",
"nlin.CD"
] | Kunihiko Kaneko (University of Tokyo) |
chao-dyn/9407001 | Pattern Dynamics of a Coupled Map Lattice for Open Flow | The pattern dynamics of the one-way coupled logistic lattice which can serve
as a phenomenological model for open flow is investigated and shown to be
extremely rich. For medium and large coupling strengths, we find spatially
periodic, quasiperiodic and chaotic patterns with temporal periodicity and
analyze their stabi... | 1994-07-06 | 2015-06-24 | [
"chao-dyn",
"adap-org",
"nlin.AO",
"nlin.CD",
"nlin.PS",
"patt-sol"
] | Frederick H. Willeboordse (University of Tokyo), Kunihiko Kaneko
(University of Tokyo) |
chao-dyn/9406012 | Power law velocity fluctuations due to inelastic collisions in
numerically simulated vibrated bed of powder} | Distribution functions of relative velocities among particles in a vibrated
bed of powder are studied both numerically and theoretically. In the solid
phase where granular particles remain near their local stable states, the
probability distribution is Gaussian. On the other hand, in the fluidized
phase, where the part... | 1994-06-29 | 2009-10-22 | [
"chao-dyn",
"cond-mat",
"nlin.CD"
] | Y-h. Taguchi(Department of Physics, Tokyo Institute of Technology,
Oh-okayama, Meguro-ku, Tokyo 152, Japan), Hideki Takayasu(Graduate School of
Information Sciences, Tohoku University,Aoba-ku, Sendai 980-77, Japan) |
chao-dyn/9406013 | Belavkin-Kolokoltsov watch-dog effects in interactively controlled
stochastic computer-graphic dynamic systems | Stochastic properties of the long time behavior of a continuously observed
(and interactively controlled) quantum--field top are investigated
mathematically. Applications to interactively controlled stochastic
computerographical dynamic systems are discussed. | 1994-06-29 | 2008-02-03 | [
"chao-dyn",
"adap-org",
"nlin.AO",
"nlin.CD"
] | Denis Juriev (Mathematical Division, Research Institute for System
Studies, Russian Academy of Sciences, Moscow, Russia and Laboratoire de
Physique Theorique de l'Ecole Normale Superieure, 24 rue Lhomond, 75231 Paris
Cedex 05, France) |
chao-dyn/9406011 | Chaos and Noise in a Truncated Toda Potential | Results are reported from a numerical investigation of orbits in a truncated
Toda potential which is perturbed by weak friction and noise. Two significant
conclusions are shown to emerge: (1) Despite other nontrivial behaviour,
configuration, velocity, and energy space moments associated with these
perturbations exhibi... | 1994-06-26 | 2016-04-06 | [
"chao-dyn",
"astro-ph",
"nlin.CD"
] | Salman Habib, Henry E. Kandrup, and M. Elaine Mahon |
chao-dyn/9406010 | Symplectic Calculation of Lyapunov Exponents | The Lyapunov exponents of a chaotic system quantify the exponential
divergence of initially nearby trajectories. For Hamiltonian systems the
exponents are related to the eigenvalues of a symplectic matrix. We make use of
this fact to develop a new method for the calculation of Lyapunov exponents of
such systems. Our ap... | 1994-06-26 | 2009-10-22 | [
"chao-dyn",
"gr-qc",
"nlin.CD"
] | Salman Habib and Robert D. Ryne |
chao-dyn/9406009 | Stability Limit for Mode-I Fracture | In order to study the stability of mode-I fracture, we consider a crack
moving along the centerline of a very wide strip and compute its steady-state
response to a small, spatially periodic shear stress. We find that, in the
presence of this perturbation, the crack remains very nearly straight up to a
critical speed $v... | 1994-06-23 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | Emily S. C. Ching (Dept. of Physics, The Chinese University of Hong
Kong, Hong Kong), J. S. Langer (Institute for Theoretical Physics, University
of California, Santa Barbara, CA) |
chao-dyn/9406008 | Coupled Analytic Maps | We consider a lattice of weakly coupled expanding circle maps. We construct,
via a cluster expansion of the Perron-Frobenius operator, an invariant measure
for these infinite dimensional dynamical systems which exhibits
space-time-chaos. | 1994-06-22 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | J.Bricmont (UCL, Physique Th\'eorique, B-1348, Louvain-la-Neuve,
Belgium), A.Kupiainen (Helsinki University, Department of Mathematics,
Helsinki 00014, Finland) |
chao-dyn/9406007 | Periodic orbit asymptotics for intermittent Hamiltonian systems | We address the problems in applying cycle expansions to bound chaotic
systems, caused by e.g. intermittency and incompleteness of the symbolic
dynamics. We discuss zeta functions associated with weighted evolution
operators and in particular a one-parameter family of weights relevant for the
calculation of classical re... | 1994-06-17 | 2015-06-24 | [
"chao-dyn",
"nlin.CD"
] | Per Dahlqvist (KTH, Stockholm) |
chao-dyn/9406006 | The Phase of the Riemann Zeta Function and the Inverted Harmonic
Oscillator | The Argand diagram is used to display some characteristics of the Riemann
Zeta function. The zeros of the Zeta function on the complex plane give rise to
an infinite sequence of closed loops, all passing through the origin of the
diagram. This leads to the analogy with the scattering amplitude, and an
approximate rule ... | 1994-06-16 | 2009-10-22 | [
"chao-dyn",
"hep-th",
"nlin.CD"
] | R.K. Bhaduri(Department of Physics and Astronomy, McMaster
University,Hamilton, Ontario, Canada L8S 4M1), Avinash Khare(Institute of
Physics, Sachivalaya Marg, Bhubaneswar-751 005, India.), and J. Law( Guelph
Waterloo Program for Graduate Work in Physics, Physics Department, University
of Guelph, Guelph, Ont, N... |
chao-dyn/9406005 | Differential equations to compute $\hbar$ corrections of the trace
formula | In this paper a new method for computation of higher order corrections to the
saddle point approximation of the Feynman path integral is discussed. The
saddle point approximation leads to local Schr\"odinger problems around
classical orbits. Especially, the saddle point approximation leads to
Schr\"odinger problems aro... | 1994-06-14 | 2008-02-03 | [
"chao-dyn",
"hep-th",
"nlin.CD"
] | Gabor Vattay (E\"otv\"os University, Department of Solid State
Physics, H-1088 Budapest, M\'uzeum krt. 6-8, Hungary ) |
chao-dyn/9406004 | Nonlinear Resonances in the Solar System | Orbital resonances are ubiquitous in the Solar system. They play a decisive
role in the long term dynamics, and in some cases the physical evolution, of
the planets and of their natural satellites, as well as the evolution of small
bodies (including dust) in the planetary system. The few-body gravitational
problem of h... | 1994-06-13 | 2009-10-22 | [
"chao-dyn",
"astro-ph",
"nlin.CD"
] | Renu Malhotra (Lunar & Planetary Institute) |
chao-dyn/9406003 | Riemann zeta function is a fractal | Voronin's theorem on the `Universality'' of Riemann zeta function is shown to
imply that Riemann zeta function is a fractal (in the sense that Mandelbrot set
is a fractal) and a concrete ``representation'' of the ``giant book of
theorems'' that Paul Halmos referred to. | 1994-06-11 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | S.C.Woon (Imperial College, Blackett Lab, London SW7 2BZ) |
chao-dyn/9406001 | Complexity of Trajectories in Rectangular Billiards | Revised version: some minor errors and typos fixed; exposition watered.
Abstract: To a trajectory of a billiard in parallelogram we assign its symbolic
trajectory - the sequence of numbers of coordinate plane, to which the faces
met by the trajectory are parallel. The complexity of the trajectory is the
number of diffe... | 1994-06-09 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Yuliy Baryshnikov |
chao-dyn/9406002 | The Berry Paradox | Lecture given Wednesday 27 October 1993 at a Physics -- Computer Science
Colloquium at the University of New Mexico. The lecture was videotaped; this is
an edited transcript. It also incorporates remarks made at the Limits to
Scientific Knowledge meeting held at the Santa Fe Institute 24--26 May 1994. | 1994-06-09 | 2015-06-24 | [
"chao-dyn",
"nlin.CD"
] | G.J. Chaitin (IBM Research) |
chao-dyn/9405013 | Effective Action Method for Langevin Equation | In this paper we present a formulation of the nonlinear stochastic
differential equation which allows for systematic approximations. The method is
not restricted to the asymptotic, i.e., stationary, regime but can be applied
to derive effective equations describing the relaxation of the system from
arbitrary initial co... | 1994-06-02 | 2009-10-22 | [
"chao-dyn",
"cond-mat",
"nlin.CD"
] | A. Crisanti and U. Marini Bettolo Marconi |
chao-dyn/9405012 | Stochastic Resonance in Deterministic Chaotic Systems | We propose a mechanism which produces periodic variations of the degree of
predictability in dynamical systems. It is shown that even in the absence of
noise when the control parameter changes periodically in time, below and above
the threshold for the onset of chaos, stochastic resonance effects appears. As
a result o... | 1994-05-20 | 2009-10-22 | [
"chao-dyn",
"cond-mat",
"nlin.CD"
] | A. Crisanti, M. Falcioni, G. Paladin and A. Vulpiani |
chao-dyn/9405010 | Chaotic Scattering Theory of Transport and Reaction-Rate Coefficients | The chaotic scattering theory is here extended to obtain escape-rate
expressions for the transport coefficients appropriate for a simple classical
fluid, or for a chemically reacting system. This theory allows various
transport coefficients such as the coefficients of viscosity, thermal
conductivity, etc., to be expres... | 1994-05-16 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | J.R. Dorfman and P. Gaspard |
chao-dyn/9405011 | Bifurcations of two coupled classical spin oscillators | Two classical, damped and driven spin oscillators with an isotropic exchange
interaction are considered. They represent a nontrivial physical system whose
equations of motion are shown to allow for an analytic treatment of local
codimension 1 and 2 bifurcations. In addition, numerical results are presented
which exhibi... | 1994-05-16 | 2016-08-14 | [
"chao-dyn",
"nlin.CD"
] | B.Rumpf and H.Sauermann (Theoretische Festk\"orperphysik, Technische
Hochschule Darmstadt, Hochschulstra{\ss}e 8, D-64289 Darmstadt, Germany) |
chao-dyn/9405009 | Bifurcations in Globally Coupled Map Lattices | The dynamics of globally coupled map lattices can be described in terms of a
nonlinear Frobenius--Perron equation in the limit of large system size. This
approach allows for an analytical computation of stationary states and their
stability. The complete bifurcation behaviour of coupled tent maps near the
chaotic band ... | 1994-05-15 | 2016-08-14 | [
"chao-dyn",
"nlin.CD"
] | Wolfram Just (Theoretische Festk\"orperphysik, Technische Hochschule
Darmstadt, Hochschulstra{\ss}e 8, D-64289 Darmstadt, Germany) |
chao-dyn/9405008 | Globally Coupled Maps: Almost Analytical Treatment of Phase Transitions | Bifurcations in a system of coupled maps are investigated. Using symbolic
dynamics it is proven that for coupled shift maps the well known
space--time--mixing attractor becomes unstable at a critical coupling strength
in favour of a synchronized state. For coupled non--hyperbolic maps analytical
and numerical evidence ... | 1994-05-15 | 2016-08-14 | [
"chao-dyn",
"nlin.CD"
] | Wolfram Just (Theoretische Festk\"orperphysik, Technische Hochschule
Darmstadt, Hochschulstra{\ss}e 8, D-64289 Darmstadt, Germany) |
chao-dyn/9405007 | Self-organized Periodic Lattices of Chaotic Defects | A novel type of self-organized lattice in which chaotic defects are arranged
periodically is reported for a coupled map model of open flow. We find that
temporally chaotic defects are followed by spatial relaxation to an almost
periodic state when suddenly a next defect appears. The distance between
successive defects ... | 1994-05-12 | 2009-10-22 | [
"chao-dyn",
"adap-org",
"nlin.AO",
"nlin.CD"
] | Frederick H. Willeboordse (University of Tokyo), Kunihiko Kaneko
(University of Tokyo) |
chao-dyn/9405005 | Defect--Defect Correlation Functions, Generic Scale Invariance, and the
Complex Ginzburg--Landau Equation | We present a calculation of defect--defect correlation functions in the
defect turbulence regime of the complex Ginzburg--Landau equation. Our results
do not agree with the predictions of generic scale invariance. Using the
topological nature of the defects, we prove that defect--defect correlations
cannot decay as slo... | 1994-05-11 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | Bruce W. Roberts, Eberhard Bodenschatz, and James P. Sethna |
chao-dyn/9405006 | Statistical Mechanics of Shell Models for 2D-Turbulence | We study shell models that conserve the analogues of energy and enstrophy,
hence designed to mimic fluid turbulence in 2D. The main result is that the
observed state is well described as a formal statistical equilibrium, closely
analogous to the approach to two-dimensional ideal hydrodynamics of Onsager,
Hopf and Lee. ... | 1994-05-11 | 2009-10-22 | [
"chao-dyn",
"cond-mat",
"nlin.CD"
] | E. Aurell, G. Boffetta, A. Crisanti, P. Frick, G. Paladin, A. Vulpiani |
chao-dyn/9405004 | Quantal Consequences of Perturbations Which Destroy Structurally
Unstable Orbits in Chaotic Billiards | Non-generic contributions to the quantal level-density from parallel segments
in billiards are investigated. These contributions are due to the existence of
marginally stable families of periodic orbits, which are structurally unstable,
in the sense that small perturbations, such as a slight tilt of one of the
segments... | 1994-05-10 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Harel Primack (Department of Physics of Complex Systems, The Weizmann
Institute of Science, 76100 Rehovot, ISRAEL), and Uzy Smilansky (Department
of Physics of Complex Systems, The Weizmann Institute of Science, 76100
Rehovot, ISRAEL) |
chao-dyn/9405003 | Numerical Study of Granular Turbulence and the appearance of $k^{-5/3}$
energy spectrum without flow | The vibrated bed of powder, a vessel that mono disperse glass beads fill and
a loud speaker shakes, is investigated numerically with the distinct element
method, a kind of molecular dynamics. When the bed is heavily shaken, the
displacement vectors of powder have the power spectrum with the dependence upon
the wave num... | 1994-05-07 | 2015-06-24 | [
"chao-dyn",
"cond-mat",
"nlin.CD"
] | Y-h. Taguchi (Department of Physics, Tokyo Institute of
Technology,Oh-okayama, Meguro-ku, Tokyo 152 Japan) |
chao-dyn/9405002 | Bottleneck effects in turbulence: Scaling phenomena in r- versus p-space | We (analytically) calculate the energy spectrum corresponding to various
experimental and numerical turbulence data analyzed by Benzi et al.. We find
two bottleneck phenomena: While the local scaling exponent $\zeta_r(r)$ of the
structure function decreases monotonically, the local scaling exponent
$\zeta_p(p)$ of the ... | 1994-05-04 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Detlef Lohse (1) and Axel Mueller-Groeling (2) ((1)The James Franck
Institute, The University of Chicago, Chicago, IL, USA (2)Department of
Physics, University of Toronto, Toronto, Ontario, Canada) |
chao-dyn/9405001 | Spectral Duality for Planar Billiards | For a bounded open domain $\Omega$ with connected complement in ${\bf R}^2$
and piecewise smooth boundary, we consider the Dirichlet Laplacian
$-\Delta_\Omega$ on $\Omega$ and the S-matrix on the complement $\Omega^c$. We
show that the on-shell S-matrices ${\bf S}_k$ have eigenvalues converging to 1
as $k\uparrow k_0$ ... | 1994-05-02 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | J.-P. Eckmann, C.-A. Pillet (D\'ept. de Physique Th\'eorique,
Universit\'e de Gen\`eve, Gen\`eve, Switzerland ) |
chao-dyn/9404003 | The Limits of Mathematics (in C) | This is a shortened version of "The Limits of Mathematics--Course Outline &
Software" (IBM Research Report RC 19324, December 1993) in which all
Mathematica code has either been deleted or, if absolutely necessary, replaced
by C code. The intention is to make this material available to a wider
audience. | 1994-04-27 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | G.J. Chaitin (IBM Research Division) |
chao-dyn/9404002 | Local Controls for Large Assemblies of Nonlinear Elements | We introduce a set of local procedures that are capable of controlling
distributed systems that exhibit complex dynamical behavior. These local
controllers need only perturb local parameters and use local information about
the state of the system. Besides eliminating the wiring and overhead needed for
implementing a ce... | 1994-04-22 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | Michael Youssefmir and Bernardo Huberman (Dynamics of Computation
Group, Xerox Palo Alto Research Center, 3333 Coyote Hill Rd., Palo Alto, CA
94304) |
chao-dyn/9404001 | Semiquantal dynamics of fluctuations: Ostensible quantum chaos | The time-dependent variational principle using generalized Gaussian trial
functions yields a finite dimensional approximation to the full quantum
dynamics and is used in many disciplines. It is shown how these 'semi-quantum'
dynamics may be derived via the Ehrenfest theorem and recast as an extended
classical gradient ... | 1994-04-15 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Arjendu K. Pattanayak and William C. Schieve (Prigogine Center,
University of Texas at Austin, Austin, TX) |
chao-dyn/9403005 | Hypersensitivity to perturbation in the quantum kicked top | For the quantum kicked top we study numerically the distribution of
Hilbert-space vectors evolving in the presence of a small random perturbation.
For an initial coherent state centered in a chaotic region of the classical
dynamics, the evolved perturbed vectors are distributed essentially like random
vectors in Hilber... | 1994-03-29 | 2009-10-22 | [
"chao-dyn",
"hep-th",
"nlin.CD"
] | Ruediger Schack (University of New Mexico), Giacomo M. D'Ariano
(Universita degli Studi di Pavia), and Carlton M. Caves (University of New
Mexico) |
chao-dyn/9403004 | Ergodicity, ensembles, irreversibility in Boltzmann and beyond | The implications of the original misunderstanding of the etymology of the
word "ergodic" are discussed, and the contents of a not too well known paper by
Boltzmann are critically examined. The connection with the modern theory of
Ruelle is attempted | 1994-03-28 | 2008-02-26 | [
"chao-dyn",
"nlin.CD"
] | Giovannni Gallavotti (Dipartimento di Fisica, Universita' di Roma,
Roma) |
chao-dyn/9403002 | Understanding Long-range Correlations in DNA Sequences | In this paper, we review the literature on statistical long-range correlation
in DNA sequences. We examine the current evidence for these correlations, and
conclude that a mixture of many length scales (including some relatively long
ones) in DNA sequences is responsible for the observed 1/f-like spectral
component. We... | 1994-03-22 | 2009-10-22 | [
"chao-dyn",
"nlin.CD",
"q-bio.GN"
] | Wentian Li, Thomas G. Marr (Cold Spring Harbor Lab), Kunihiko Kaneko
(University of Tokyo) |
chao-dyn/9403001 | Prediction Errors and Local Lyapunov Exponents | It is frequently asserted that in a chaotic system two initially close points
will separate at an exponential rate governed by the largest global Lyapunov
exponent. Local Lyapunov exponents, however, are more directly relevant to
predictability. The difference between the local and global Lyapunov exponents,
the large ... | 1994-03-09 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | Matthew B. Kennel(1), Henry D. I. Abarbanel(1,2), and J. J. "Sid"
Sidorowich(1) ((1) Institute for Nonlinear Science, UC San Diego (2) Marine
Physical Laboratory, Scripps Institution of Oceanography) |
chao-dyn/9402007 | Approximate zeta functions for the Sinai billiard and related systems | We discuss zeta functions, and traces of the associated weighted evolution
operators for intermittent Hamiltonian systems in general and for the Sinai
billiard in particular. The intermittency of this billiard is utilized so that
the zeta functions may be approximately expressed in terms of the probability
distribution... | 1994-02-24 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Per Dahlqvist (KTH, Stockholm) |
chao-dyn/9402005 | Transition to Chaos in a Shell Model of Turbulence | We study a shell model for the energy cascade in three dimensional turbulence
at varying the coefficients of the non-linear terms in such a way that the
fundamental symmetries of Navier-Stokes are conserved. When a control parameter
$\epsilon$ related to the strength of backward energy transfer is enough small,
the dyn... | 1994-02-22 | 2015-06-24 | [
"chao-dyn",
"nlin.CD"
] | L. Biferale, A. Lambert, R. Lima and G. Paladin |
chao-dyn/9402006 | The Bogdanov Map: Bifurcations, Mode Locking, and Chaos in a Dissipative
System | We investigate the bifurcations and basins of attraction in the Bogdanov map,
a planar quadratic map which is conjugate to the H\'enon area-preserving map in
its conservative limit. It undergoes a Hopf bifurcation as dissipation is
added, and exhibits the panoply of mode locking, Arnold tongues, and chaos as
an invaria... | 1994-02-22 | 2015-10-13 | [
"chao-dyn",
"math.DS",
"nlin.CD"
] | David K. Arrowsmith, Julyan H. E. Cartwright, Alexis N. Lansbury, and
Colin M. Place |
chao-dyn/9402004 | A Method for Detecting Possible Non-determinism in a Time Series | A method for detecting possible non-deterministic dynamics underlying a time
series is introduced. Non-deterministic dynamics may arise due to the failure
of the Lipschitz condition in the equations of motion. At a singular point, the
phase space trajectory of the system may jump from one solution to another.
This disc... | 1994-02-19 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | D. D. Dixon (Institute of Geophysics and Planetary Physics, University
of California, Riverside), M. Zak (Jet Propulsion Laboratory) and J. P.
Zbilut (Rush Medical College, Chicago) |
chao-dyn/9402003 | Quasi-equilibria in one-dimensional self-gravitating many body systems | The microscopic dynamics of one-dimensional self-gravitating many-body
systems is studied. We examine two courses of the evolution which has the
isothermal and stationary water-bag distribution as initial conditions. We
investigate the evolution of the systems toward thermal equilibrium. It is
found that when the numbe... | 1994-02-15 | 2009-10-22 | [
"chao-dyn",
"astro-ph",
"nlin.CD"
] | Toshio Tsuchiya (Department of Physics, Kyoto University, Kyoto,
Japan), Tetsuro Konishi (Department of Physics, Nagoya University, Nagoya,
Japan), Naoteru Gouda (Department of Earth and Space Science, Osaka
University, Toyonaka, Japan) |
chao-dyn/9402002 | Finite size corrections to scaling in high Reynolds number turbulence | We study analytically and numerically the corrections to scaling in
turbulence which arise due to the finite ratio of the outer scale $L$ of
turbulence to the viscous scale $\eta$, i.e., they are due to finite size
effects as anisotropic forcing or boundary conditions at large scales. We find
that the deviations $\dzm$... | 1994-02-09 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Siegfried Grossmann (Fachbereich Physik, Philipps-Universit\"at,
Renthof 6, D-35032 Marburg, Germany), Detlef Lohse (The James Franck
Institute, The University of Chicago, 5640 South Ellis Avenue, Chicago, IL
60637, USA), Victor L'vov (Dept. of Physics of Complex Systems, the Weizmann
Institute of Science, Reho... |
chao-dyn/9402001 | Quantum Chaos | A short historical overview is given on the development of our knowledge of
complex dynamical systems with special emphasis on ergodicity and chaos, and on
the semiclassical quantization of integrable and chaotic systems. The general
trace formula is discussed as a sound mathematical basis for the semiclassical
quantiz... | 1994-02-07 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | Frank Steiner |
chao-dyn/9401007 | Periodic Orbit Theory of Diffraction | An extension of the Gutzwiller trace formula is given that includes
diffraction effects due to hard wall scatterers or other singularities. The new
trace formula involves periodic orbits which have arcs on the surface of
singularity and which correspond to creping waves. A new family of resonances
in the two disk scatt... | 1994-01-21 | 2016-08-14 | [
"chao-dyn",
"cond-mat",
"nlin.CD"
] | G\'abor Vattay (Niels Bohr Institute, Blegdamsvej 17, DK-2100
Copenhagen O, Denmark), Andreas Wirzba (Institut f\"ur Kernphysik, Technische
Hochschule Darmstadt, Schlo{\ss}gartenstr. 9, D-64289 Darmstadt, Germany),
and Per E. Rosenqvist (Niels Bohr Institute, Blegdamsvej 17, DK-2100
Copenhagen O, Denmark) |
chao-dyn/9401006 | Stability Estimate in Scattering Theory and Its Application to
Mesoscopic Systems and Quantum Chaos | We consider scattering of a free quantum particle on a singular potential
with rather arbitrary shape of the support of the potential. In the classical
limit $\hbar=0$ this problem reduces to the well known problem of chaotic
scattering. The universal estimates for the stability of the scattering
amplitudes are derived... | 1994-01-19 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Alexander G. Ramm (Dept of Mathematics, Kansas State University) and
Gennady P. Berman (Center for Nonlinear Studies, LANL; and Kirensky Institute
of Physics, Krasnoyarsk State University, Russia) |
chao-dyn/9401005 | Crossover from high to low Reynolds number turbulence | The Taylor-Reynolds and Reynolds number ($Re_\lambda$ and $Re$) dependence of
the dimensionless energy dissipation rate $\ceps =\eps L / \u1rms^3$ is derived
for statistically stationary isotropic turbulence, employing the results of a
variable range mean field theory. Here, $\eps$ is the energy dissipation rate,
$L$ i... | 1994-01-18 | 2009-10-22 | [
"chao-dyn",
"nlin.CD"
] | Detlef Lohse (The James Franck Institute, 5640 South Ellis Avenue,
Chicago, IL 60637) |
chao-dyn/9401003 | Chaotic time series Part II: System identification and prediction | This paper is the second in a series of two, and describes the current state
of the art in modelling and prediction of chaotic time series. Sampled data
from deterministic non-linear systems may look stochastic when analysed with
linear methods. However, the deterministic structure may be uncovered and
non-linear model... | 1994-01-14 | 2008-02-03 | [
"chao-dyn",
"comp-gas",
"nlin.CD",
"nlin.CG"
] | Bjoern Lillekjendlie (SINTEF-SI, Pb. 124, Blindern, N-0314 Oslo,
Norway), Dimitris Kugiumtzis and Nils Christophersen (Department of
Informatics, University of Oslo, Pb. 1080 Blindern, N-0316 Oslo, Norway) |
chao-dyn/9401004 | Chaotic time series Part I: Estimation of invariant properies in state
space | Certain deterministic non-linear systems may show chaotic behaviour. Time
series derived from such systems seem stochastic when analyzed with linear
techniques. However, uncovering the deterministic structure is important
because it allows for construction of more realistic and better models and thus
improved predictiv... | 1994-01-14 | 2008-02-03 | [
"chao-dyn",
"comp-gas",
"nlin.CD",
"nlin.CG"
] | Dimitris Kugiumtzis (Department of Informatics, University of Oslo,
Pb. 1080 Blindern, N-0316 Oslo, Norway), Bjoern Lillekjendlie (SINTEF-SI, Pb.
124, Blindern, N-0314 Oslo, Norway), Nils Christophersen (Department of
Informatics, University of Oslo, Pb. 1080 Blindern, N-0316 Oslo, Norway) |
chao-dyn/9401002 | The Dynamics of Vortex Structures and States of Current in Plasma-Like
Fluids and the Electrical Explosion of Conductors: 3. Comparison with
Experiment | The present paper is a concluding part of the series [N.B. Volkov and A.M.
Iskoldsky: 1; 2; [1], [2]]. Here on the basis of the results of the above
papers the experiments on the electric explosion in conductors have been
discussed and the mechanism of "hot" plasma spots formation which was
repeatedly observed in the e... | 1994-01-06 | 2016-08-31 | [
"chao-dyn",
"nlin.CD"
] | N B Volkov and A M Iskoldsky (Russian Academy of Science, Ural
Division, Institute of Electrophysics, Ekaterinburg, Russia) |
chao-dyn/9401001 | The Dynamics of Vortex Structures and States of Current in Plasma-Like
Fluids and the Electrical Explosion of Conductors: 2. Computer experiment | In the present paper which is a sequel to [N.B. Volkov and A.M. Iskoldsky The
dynamics of vortex structures and states of current: 1;[1]], the dynamics of
non-equilibrium phase transitions and states of current in electrophysical
systems providing an external circuit and a nonlinear element the model of
which has been ... | 1994-01-05 | 2008-02-03 | [
"chao-dyn",
"nlin.CD"
] | N.B. Volkov and A.M. Iskoldsky (Russian Academy of Science, Ural
Division, Institute of Electrophysics, Ekaterinburg, Russia) |
chem-ph/9412003 | Specific heat in the thermodynamics of clusters | The thermodynamic properties such as the specific heat are uniquely
determined by the second moments of the energy distribution for a given
ensemble averaging. However for small particle numbers the results depend on
the ensemble chosen. We calculated the higher moments of the distributions of
some observables for both... | 1994-12-29 | 2008-02-03 | [
"chem-ph",
"physics.chem-ph"
] | Peter Borrmann, Dorian Gloski, Eberhard R. Hilf (Dept. of Physics,
University of Oldenburg) |
chem-ph/9412002 | Microwave detected, microwave-optical double resonance of NH3, NH2D,
NHD2, and ND3. I. Sturcture and force field of the A state | Microwave detected, microwave-optical double resonance was used to record the
A state electronic spectrum of NH3, NH2D, and NHD2 with both vibrational and
rotational resolution. To investigate ND3 with the same resolution as we had
with our hydrogen containing isotopomers, a strip-line cell was constructed
allowing the... | 1994-12-07 | 2008-02-03 | [
"chem-ph",
"physics.chem-ph"
] | Steven A. Henck, Martin A. Mason, Wen - Bin Yan, Kevin K. Lehmann, and
Stephen L. Coy |
chem-ph/9412001 | Microwave detected, microwave-optical double resonance of NH3, NH2D,
NHD2, and ND3. II. Predissociation dynamics of the A state | Using microwave detected, microwave-optical double resonance, we have
measured the homogeneous linewidths of individual rovibrational transitions in
the \~A state of NH3, NH2D, NHD2, and ND3. We have used this excited state
spectroscopic data to characterize the height of the dissociation barrier and
the mechanisms by ... | 1994-12-06 | 2009-10-22 | [
"chem-ph",
"physics.chem-ph"
] | Steven A. Henck, Martin A. Mason, Wen - Bin Yan, Kevin K. Lehmann, and
Stephen L. Coy |
chem-ph/9411012 | Reversible Work Transiton State Theory: Application to Dissociative
Adsorption of Hydrogen | A practical method for finding free energy barriers for transitions in
high-dimensional classical and quantum systems is presented and used to
calculate the dissociative sticking probability of H2 on a metal surface within
transition state theory (TST). The reversible work involved in shifting the
system confined to a ... | 1994-11-16 | 2009-10-22 | [
"chem-ph",
"physics.chem-ph"
] | Gregory Mills and Hannes Jonsson |
chem-ph/9411010 | Radiative association and inverse predissociation of oxygen atoms | The formation of $\mbox{O}_2$ by radiative association and by inverse
predissociation of ground state oxygen atoms is studied using
quantum-mechanical methods. Cross sections, emission spectra, and rate
coefficients are presented and compared with prior experimental and theoretical
results. At temperatures below 1000~K... | 1994-11-15 | 2008-02-03 | [
"chem-ph",
"physics.chem-ph"
] | J. F. Babb and A. Dalgarno |
chem-ph/9411011 | Molecular Dynamics Simulations of a Pressure-induced Glass Transition | We simulate the compression of a two-component Lennard-Jones liquid at a
variety of constant temperatures using a molecular dynamics algorithm in an
isobaric-isothermal ensemble. The viscosity of the liquid increases with
pressure, undergoing a broadened transition into a structurally arrested,
amorphous state. This tr... | 1994-11-15 | 2009-10-22 | [
"chem-ph",
"physics.chem-ph"
] | Shelly L. Shumway, Andrew S. Clarke and Hannes J\'onsson (University
of Washington) |
chem-ph/9411009 | A Hybrid Decomposition Parallel Implementation of the Car-Parrinello
Method | We have developed a flexible hybrid decomposition parallel implementation of
the first-principles molecular dynamics algorithm of Car and Parrinello. The
code allows the problem to be decomposed either spatially, over the electronic
orbitals, or any combination of the two. Performance statistics for 32, 64, 128
and 512... | 1994-11-14 | 2009-10-22 | [
"chem-ph",
"physics.chem-ph"
] | James K. Wiggs (Department of Chemistry, University of Washington) and
Hannes Jonsson (Department of Chemistry, University of Washington) |
chem-ph/9411008 | Funnels, Pathways and the Energy Landscape of Protein Folding: A
Synthesis | The understanding, and even the description of protein folding is impeded by
the complexity of the process. Much of this complexity can be described and
understood by taking a statistical approach to the energetics of protein
conformation, that is, to the energy landscape. The statistical energy
landscape approach expl... | 1994-11-11 | 2008-02-03 | [
"chem-ph",
"cond-mat",
"physics.chem-ph"
] | J. D. Bryngelson, J. N. Onuchic, N. D. Socci and P. G. Wolynes |
chem-ph/9411007 | Comment on "Monte Carlo Simulation of a First-Order Transition" | We comment on a recent article by Hao and Scheraga. | 1994-11-11 | 2008-02-03 | [
"chem-ph",
"physics.chem-ph"
] | Bernd A. Berg, Ulrich H.E. Hansmann and Yuko Okamoto |
chem-ph/9411006 | Low-temperature dynamical simulation of spin-boson systems | The dynamics of spin-boson systems at very low temperatures has been studied
using a real-time path-integral simulation technique which combines a
stochastic Monte Carlo sampling over the quantum fluctuations with an exact
treatment of the quasiclassical degrees of freedoms. To a large degree, this
special technique ci... | 1994-11-09 | 2009-10-22 | [
"chem-ph",
"physics.chem-ph"
] | Reinhold Egger and C.H. Mak (Department of Chemistry, University of
Southern California, Los Angeles, USA) |
chem-ph/9411005 | Comparative Study of Multicanonical and Simulated Annealing Algorithms
in the Protein Folding Problem | We compare a few variants of the recently proposed multicanonical method with
the well known simulated annealing for the effectiveness in search of the
energy global minimum of a biomolecular system. For this we study in detail
Met-enkephalin, one of the simplest peptides. We show that the new method not
only outperfor... | 1994-11-08 | 2009-10-22 | [
"chem-ph",
"cond-mat",
"hep-lat",
"physics.chem-ph"
] | Ulrich H.E. Hansmann and Yuko Okamoto |
chem-ph/9411002 | Packing Transitions in Nanosized Li Clusters | Packing transitions in the lowest energy structures of Li clusters as a
function of size have been identified via simulated annealing. For N>21, the
large $p$ character of Li leads to unexpected ionic structures. At N~25, a
packing pattern based on interpenetrating 13-atom icosahedra and similar to
that of Na and K app... | 1994-11-04 | 2009-10-22 | [
"chem-ph",
"mtrl-th",
"physics.chem-ph"
] | Ming Wen Sung (University of California, San Diego), Ryoichi Kawai
(University of Alabama at Birmingham), John H. Weare (University of
California, San Diego) |
chem-ph/9411004 | Theoretical Study of Time-Resolved Fluorescence Anisotropy from Coupled
Chromophore Pairs | Calculations of time-resolved fluorescence anisotropy from a pair of
chromophores coupled by an excitation transfer interaction are presented. For
the purpose of investigating the effects of nuclear motion on the energy
transfer and anisotropy, an illustrative model is developed that provides each
chromophore with a si... | 1994-11-04 | 2008-02-03 | [
"chem-ph",
"physics.chem-ph"
] | Alexander Matro and Jeffrey A. Cina (Department of Chemistry and The
James Franck Institute, The University of Chicago, Chicago, IL) |
chem-ph/9411003 | Dimensional Perturbation Theory on the Connection Machine | A recently developed linear algebraic method for the computation of
perturbation expansion coefficients to large order is applied to the problem of
a hydrogenic atom in a magnetic field. We take as the zeroth order
approximation the $D \rightarrow \infty$ limit, where $D$ is the number of
spatial dimensions. In this ps... | 1994-11-04 | 2009-10-22 | [
"chem-ph",
"cond-mat",
"hep-th",
"physics.chem-ph"
] | Timothy C. Germann (Department of Chemistry, Harvard University),
Dudley R. Herschbach (Department of Chemistry, Harvard University), and Bruce
M. Boghosian (Center for Computational Science, Boston University) |
chem-ph/9411001 | Many-Body effects and resonances in universal quantum sticking of cold
atoms to surfaces | The role of shape resonances and many-body effects on universal quantum
sticking of ultra cold atoms onto solid surfaces is examined analytically and
computationally using an exactly solvable representation of the Dyson equation.
We derive the self-energy renormalization of the the transition amplitude
between an ultra... | 1994-11-03 | 2009-10-22 | [
"chem-ph",
"physics.chem-ph"
] | Eric R. Bittner and John C. Light |
chem-ph/9410001 | On the Mechanism of the Primary Charge Separation in Bacterial
Photosynthesis | We present a detailed analysis of the mechanism of the primary charge
separation process in bacterial photosynthesis using real-time path integrals.
Direct computer simulations as well as an approximate analytical theory have
been employed to map out the dynamics of the charge separation process in many
regions of the ... | 1994-10-16 | 2009-10-22 | [
"chem-ph",
"physics.chem-ph"
] | C.H. Mak (Department of Chemistry, University of Southern California,
Los Angeles, California, USA) and Reinhold Egger (Fakultat fur Physik,
Universitat Freiburg, Hermann-Herder-Str. 3, D-79104 Freiburg, Germany) |
chem-ph/9410002 | Transferable Tight-Binding Potential for Hydrocarbons | A transferable tight-binding potential has been constructed for heteroatomic
systems containing carbon and hydrogen. The electronic degree of freedom is
treated explicitly in this potential using a small set of transferable
parameters which has been fitted to small hydrocarbons and radicals.
Transferability to other hi... | 1994-10-16 | 2008-02-03 | [
"chem-ph",
"physics.chem-ph"
] | Yang Wang and C.H. Mak (Department of Chemistry, University of
Southern California, Los Angeles, CA) |
chem-ph/9409002 | Locating transition states using double-ended classical trajectories | In this paper we present a method for locating transition states and
higher-order saddles on potential energy surfaces using double-ended classical
trajectories. We then apply this method to 7- and 8-atom Lennard-Jones
clusters, finding one previously unreported transition state for the 7-atom
cluster and two for the 8... | 1994-09-20 | 2009-10-22 | [
"chem-ph",
"physics.chem-ph"
] | A. Matro and D.L. Freeman (Department of Chemistry, The University of
Rhode Island, Kingston, RI) and J.D. Doll (Department of Chemistry, Brown
University, Providence, RI) |
chem-ph/9409001 | C20: Fulleren, Bowl or Ring? New Results from Coupled-Cluster
Calculations | Contrary to recent experimental evidence suggesting that the monocyclic ring
is the most stable 20-atom carbon species, highly accurate calculations
convincingly predict that the smallest fullerene, the dodecahedron C$_{20}$,
has the lowest energy. A related corannulene-like bowl is nearly degenerate in
energy to the f... | 1994-09-18 | 2009-10-22 | [
"chem-ph",
"physics.chem-ph"
] | Peter R. Taylor (San Diego Supercomputer Center) Eric Bylaska and John
H. Weare (Department of Chemistry, UCSD) Ryoichi Kawai (Dept. of Physics,
Univ. of Alabama at Birmingham) |
chem-ph/9408002 | Methods for molecular dynamics with nonadiabatic transitions | We show how the dynamically nonlocal formulation of classical nuclear motion
in the presence of quantal electronic transitions presented many years ago by
Pechukas can be localized in time using time dependent perturbation theory to
give an impulsive force which acts when trajectories hop between electronic
surfaces. T... | 1994-08-12 | 2009-10-22 | [
"chem-ph",
"physics.chem-ph"
] | D.F. Coker and L. Xiao (Department of Chemistry, Boston University,
590 Commonwealth Avenue, Boston, MA) |
chem-ph/9408001 | Theoretical calculation of the water ion product K_W | A dielectric solvation model is applied to the prediction of the equilibrium
ionization of liquid water over a wide range of density and temperature with
the objective of calibrating that model for the study of ionization in water of
organic acids, {\it e.g.\/}, proteins and nucleic acids. The model includes an
approxi... | 1994-08-03 | 2009-09-25 | [
"chem-ph",
"physics.chem-ph"
] | Gregory J. Tawa and Lawrence R. Pratt (Theoretical Division, Los
Alamos National Laboratory, Los Alamos NM) |
chem-ph/9407002 | Optical response of C60 and C70 fullerenes: Exciton and lattice
fluctuation effects | Molecular exciton effects in the neutral and maximally doped C60 (C70) are
considered using a tight binding model with long-range Coulomb interactions and
bond disorder. By comparing calculated and observed optical spectra, we
conclude that relevant Coulomb parameters for the doped cases are about half of
those of the ... | 1994-07-14 | 2008-02-03 | [
"chem-ph",
"cond-mat",
"hep-lat",
"physics.chem-ph"
] | Kikuo Harigaya and Shuji Abe (Fundamental Physics Section,
Electrotechnical Laboratory, Umezono, Tsukuba, Ibaraki, Japan) |
chem-ph/9407001 | The Construction of Double-Ended Classical Trajectories | In the present paper we describe relaxation methods for constructing
double-ended classical trajectories. We illustrate our approach with an
application to a model anharmonic system, the Henon-Heiles problem.
Trajectories for this model exhibit a number of interesting energy-time
relationships that appear to be of gene... | 1994-07-08 | 2009-10-22 | [
"chem-ph",
"cond-mat",
"physics.chem-ph"
] | A. E. Cho and J. D. Doll (Department of Chemistry, Brown University,
Providence, RI) and D. L. Freeman (Department of Chemistry, University of
Rhode Island, Kingston, RI) |
chem-ph/9406003 | Many-body trial wave functions for atomic systems and ground states of
small noble gas clusters | Clusters of sizes ranging from two to five are studied by variational quantum
Monte Carlo techniques. The clusters consist of Ar, Ne and hypothetical lighter
(``$1 \over 2$-Ne") atoms. A general form of trial function is developed for
which the variational bias is considerably smaller than the statistical error
of curr... | 1994-06-24 | 2009-10-22 | [
"chem-ph",
"physics.chem-ph"
] | Andrei Mushinski and M.P. Nightingale (Department of Physics,
University of Rhode Island, Kingston, RI 02881) |
chem-ph/9406002 | Dynamical Fluctuating Charge Force Fields: Application to Liquid Water | A new molecular dynamics model in which the point charges on atomic sites are
allowed to fluctuate in response to the environment is developed and applied to
water. The idea for treating charges as variables is based on the concept of
electronegativity equalization according to which: (a) The electronegativity of
an at... | 1994-06-10 | 2009-10-22 | [
"chem-ph",
"physics.chem-ph"
] | Steven W. Rick, Steven J. Stuart, and B.J. Berne (Department of
Chemistry and Center for Biomolecular Simulation Columbia University, NY) |
chem-ph/9406001 | Magic Numbers for Classical Lennard-Jones Cluster Heat Capacities | Heat capacity curves as functions of temperature for classical atomic
clusters bound by pairwise Lennard-Jones potentials were calculated for
aggregate sizes from 4 to 24 using Monte Carlo methods. J-walking (or
jump-walking) was used to overcome convergence difficulties due to
quasi-ergodicity in the solid-liquid tran... | 1994-06-07 | 2009-10-22 | [
"chem-ph",
"physics.chem-ph"
] | Don D. Frantz (Department of Chemistry, University of Lethbridge,
Lethbridge, Canada) |
chem-ph/9405002 | Decisions, Decisions: Noise and its Effects on Integral Monte Carlo
Algorithms | In the present paper we examine the effects of noise on Monte Carlo
algorithms, a problem raised previously by Kennedy and Kuti (Phys. Rev. Lett.
{\bf 54}, 2473 (1985)). We show that the effects of introducing unbiased noise
into the acceptance/rejection phase of the conventional Metropolis approach are
surprisingly mo... | 1994-05-26 | 2009-10-22 | [
"chem-ph",
"cond-mat",
"physics.chem-ph"
] | J. D. Doll (Department of Chemistry, Brown University, Providence, RI)
and D. L. Freeman (Department of Chemistry, University of Rhode Island,
Kingston, RI) |
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