Articles with "stochastic dynamics" as a keyword



Conserving the linear momentum in stochastic dynamics: Dissipative particle dynamics as a general strategy to achieve local thermostatization in molecular dynamics simulations

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Published in 2017 at "Journal of Computational Chemistry"

DOI: 10.1002/jcc.24677

Abstract: Stochastic dynamics is a widely employed strategy to achieve local thermostatization in molecular dynamics simulation studies; however, it suffers from an inherent violation of momentum conservation. Although this short‐coming has little impact on structural and… read more here.

Keywords: achieve local; stochastic dynamics; thermostatization; momentum ... See more keywords

Insights on Stochastic Dynamics for Transmission of Monkeypox: Biological and Probabilistic Behavior

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Published in 2024 at "Mathematical Methods in the Applied Sciences"

DOI: 10.1002/mma.11180

Abstract: The transmission of monkeypox is studied using a stochastic model taking into account the biological aspects, the contact mechanisms and the demographic factors, together with the intrinsic uncertainties. Our results provide insight into the interaction… read more here.

Keywords: transmission monkeypox; transmission; insights stochastic; monkeypox biological ... See more keywords

Rare Event Simulation for Stochastic Dynamics in Continuous Time

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Published in 2019 at "Journal of Statistical Physics"

DOI: 10.1007/s10955-019-02340-1

Abstract: Large deviations for additive path functionals of stochastic dynamics and related numerical approaches have attracted significant recent research interest. We focus on the question of convergence properties for cloning algorithms in continuous time, and establish… read more here.

Keywords: stochastic dynamics; cloning algorithms; rare event; continuous time ... See more keywords

Stochastic dynamics of a piezoelectric energy harvester with correlated colored noises from rotational environment

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Published in 2019 at "Nonlinear Dynamics"

DOI: 10.1007/s11071-019-05208-x

Abstract: The energy harvesting from rotational automotive tire is studied through an electromechanical-coupled system which is a harmonically driven bi-stable potential with correlated additive and multiplicative colored noises. By integrating the voltage equation and introducing generalized… read more here.

Keywords: colored noises; system; energy; stochastic dynamics ... See more keywords

Global-nonlinear stochastic dynamics of a class of two-state two-parameter non-isothermal continuous stirred tank reactors

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Published in 2018 at "Journal of Process Control"

DOI: 10.1016/j.jprocont.2018.07.012

Abstract: Abstract The global-nonlinear stochastic dynamics of a class of two-state two-parameter continuous exothermic chemical reactors subjected to noise disturbances is studied with Fokker-Planck’s (FP’s) partial differential equation (PDE) theory. The dependency of the stochastic on… read more here.

Keywords: state; nonlinear stochastic; global nonlinear; stochastic dynamics ... See more keywords

Stochastic dynamics of planar magnetic moments in a three-dimensional environment

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Published in 2018 at "Physica A: Statistical Mechanics and its Applications"

DOI: 10.1016/j.physa.2018.06.126

Abstract: Abstract We study the stochastic dynamics of a two-dimensional magnetic moment embedded in a three-dimensional environment, described by means of the stochastic Landau–Lifshitz–Gilbert (sLLG) equation. We define a covariant generalization of this equation, valid in… read more here.

Keywords: three dimensional; stochastic dynamics; dimensional environment; formulation ... See more keywords

GROMACS Stochastic Dynamics and BAOAB Are Equivalent Configurational Sampling Algorithms.

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Published in 2022 at "Journal of chemical theory and computation"

DOI: 10.1021/acs.jctc.2c00585

Abstract: Two of the most widely used Langevin integrators for molecular dynamics simulations are the GROMACS Stochastic Dynamics (GSD) integrator and the splitting method BAOAB. In this letter, we show that the GROMACS Stochastic Dynamics integrator… read more here.

Keywords: configurational sampling; dynamics baoab; baoab equivalent; equivalent configurational ... See more keywords

Stochastic dynamics of an active particle escaping from a potential well.

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Published in 2020 at "Chaos"

DOI: 10.1063/1.5140853

Abstract: Active matter systems are driven out of equilibrium by the energy directly supplied at the level of constituent active particles that are self-propelled. We consider a model for an active particle in a potential well,… read more here.

Keywords: active particle; stochastic dynamics; potential well; dynamics active ... See more keywords

Scalar field stochastic dynamics in de Sitter spacetime from exact solutions of quantum deficient oscillators

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Published in 2025 at "Progress of Theoretical and Experimental Physics"

DOI: 10.1093/ptep/ptaf143

Abstract: The stochastic dynamics of a scalar field in de Sitter spacetime can be regarded as a non-perturbative diffusion process, to which exact distribution and correlation functions are constructed by utilising the correspondence between diffusion and… read more here.

Keywords: scalar field; deficient oscillators; quantum deficient; exact solutions ... See more keywords

Principled Model Selection for Stochastic Dynamics.

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Published in 2025 at "Physical review letters"

DOI: 10.1103/ltdt-hvh7

Abstract: Complex dynamical systems, from macromolecules to ecosystems, are often modeled by stochastic differential equations. To learn such models from data, a common approach involves sparse selection among a large function library. However, we show that… read more here.

Keywords: model selection; selection stochastic; principled model; model ... See more keywords

Generating transverse response explicitly from harmonic oscillators

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Published in 2017 at "Physical Review B"

DOI: 10.1103/physrevb.96.134414

Abstract: We obtain stochastic dynamics from a system-plus-bath mechanism as an extension of the Caldeira-Leggett (CL) model in the classical regime. An effective magnetic field and response functions with both longitudinal and transverse parts are exactly… read more here.

Keywords: transverse response; response; stochastic dynamics; effective magnetic ... See more keywords