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Asymptotic Analysis and Synthesis in Mechanics of Solids and Nonlinear Dynamics
Asymptotic Analysis Synthesis Mechanics of Solids Nonlinear Dynamics
2011/7/26
Asymptotic Analysis and Synthesis in Mechanics of Solids and Nonlinear Dynamics.
Pseudo resonance induced quasi-periodic behavior in stochastic threshold dynamics
Pseudo resonance quasi-periodic behavior stochastic threshold dynamics
2011/7/27
Abstract: Here we present a simple stochastic threshold model consisting of a deterministic slowly decaying term and a fast stochastic noise term. The process shows a pseudo-resonance, in the sense th...
Calculation technique for simulation of wave and fracture dynamics in a reinforced sheet
simulation of wave fracture dynamics reinforced sheet Computational Physics
2011/7/27
Abstract: Mathematical models and computer algorithms are developed to calculate dynamic stress concentration and fracture wave propagation in a reinforced composite sheet. The composite consists of a...
Fractal dimension evolution and spatial replacement dynamics of urban growth
bifurcation chaos fractal dimension Boltzmann’s equation logistical map spatial replacement nonlinear dynamics urban form urban growth
2011/8/29
This paper presents a new perspective of looking at the relation between fractals and chaos by means of cities. Especially, a principle of space filling and spatial replacement is proposed to explain ...
Aggressive shadowing of a low-dimensional model of atmospheric dynamics
low-dimensional model atmospheric dynamics Chaotic Dynamics
2011/7/25
Abstract: Predictions of the future state of the Earth's atmosphere suffer from the consequences of chaos: numerical weather forecast models quickly diverge from observations as uncertainty in the ini...
Markovian and non-Markovian dynamics in quantum and classical systems
Markovian non-Markovian dynamics quantum classical systems
2011/7/27
Abstract: We discuss the conceptually different definitions used for the non-Markovianity of classical and quantum processes. The well-established definition for non-Markovianity of a classical stocha...
Aggressive shadowing of a low-dimensional model of atmospheric dynamics
shadowing, stalking, ensemble forecasting, inflation
2011/9/9
Predictions of the future state of the Earth’s atmosphere suffer from the consequences of chaos: numerical weather forecast models quickly diverge from observations as uncertainty in the initial state...
D1-brane in Constant R-R 3-form Flux and Nambu Dynamics in String Theory
D1-brane Constant R-R 3-form Flux Nambu Dynamics String Theory
2010/12/23
We consider D1-string in a constant R-R 3-form flux background and analyze its low energy limit. The leading order low energy theory has reparametrization symmetry and is a generalization of an earli...
Dynamics and Thermodynamics of (2+1)-Dimensional Evolving Lorentzian Wormhole
Dynamics Thermodynamics of (2+1)-Dimensional Evolving Lorentzian Wormhole
2010/12/27
In this paper we study the relationship between the Einstein field equations for the (2+1)-dimensional evolving wormhole and the first law of thermodynamics. It has been shown that the Einstein field...
Macroscopic time evolution and MaxEnt inference for closed systems with Hamiltonian dynamics
MaxEnt algorithm information theory statistical mechanics Hamiltonian dynamics
2010/11/24
MaxEnt inference algorithm from the information theory is relevant for the time evolution of macroscopic systems which represents a problem of incomplete information. Two different approaches using Ma...
General Non-equilibrium Theory of Colloid Dynamics
General Non-equilibrium Theory Colloid Dynamics
2010/11/24
A non-equilibrium extension of Onsager’s canonical theory of thermal fluctuations is employed
to derive a self-consistent theory for the description of the statistical properties of the instantaneous...
We present numerical simulations of a Kerr black hole perturbed by a pulse of ingoing gravitational radiation. For strong perturbations we find up to five concentric marginally outer trapped surfaces....
The dynamics of dark solitons in a trapped superfluid Fermi gas
dynamics of dark solitons trapped superfluid Fermi gas
2010/11/24
We study soliton oscillations in a trapped superfluid Fermi gas across the Bose-Einstein conden-sate to Bardeen-Cooper-Schrieffer (BEC-BCS) crossover. We derive an exact equation relating the phase ju...
Dynamics of a Bose-Einstein condensate in a symmetric triple-well trap
Dynamics a symmetric triple-well trap a Bose-Einstein condensate
2010/11/8
We present a complete analysis of the dynamics of a Bose-Einstein condensate trapped in a symmetric triple-well potential. Our classical analogue treatment, based on a time-dependent variational metho...
Open system quantum dynamics with correlated initial states, not completely positive maps and non-Markovianity
quantum dynamics non-Markovianity Quantum Physics
2010/11/8
Dynamical A and B maps have been employed extensively by Sudarshan and co-workers to investigate open system evolution of quantum systems. A canonical structure of the A-map is introduced here. It is ...