Results 41 to 50 of about 83,346 (245)
Benchmarking quantum annealing dynamics: The spin-vector Langevin model
Physical Review Research, 2022 The classical spin-vector Monte Carlo (SVMC) model is a reference benchmark for the performance of a quantum annealer. Yet, as a Monte Carlo method, SVMC is unsuited for an accurate description of the annealing dynamics in real-time.
David Subires +4 more
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Synchronization induced by Langevin dynamics
Physical Review E, 2001 Equilibrium Langevin dynamics of one-dimensional Lennard-Jones chains is studied. It is shown that depending on the noise strength, the friction constant and the number of particles, chains can synchronize, break, or remain desynchronized. Generally the synchronization time and the maximal Lyapunov exponent are found to depend on the number of ...
Cieśla, Michał +3 more
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Uncertainty relations for underdamped Langevin dynamics [PDF]
Physical Review E, 2019 14 pages, 2 ...
Tan Van Vu, Yoshihiko Hasegawa
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White-noise fluctuation theorem for Langevin dynamics
New Journal of Physics, 2022 Fluctuation theorems (FTs) based on time-reversal have provided remarkable insight into the non-equilibrium statistics of thermodynamic quantities like heat, work, and entropy production.
M Innerbichler +4 more
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International Journal of Differential Equations, 2010 We study a Dirichlet boundary value problem for Langevin equation involving two fractional orders. Langevin equation has been widely used to describe the evolution of physical phenomena in fluctuating environments.
Bashir Ahmad, Juan J. Nieto
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Aggregated Gradient Langevin Dynamics
Proceedings of the AAAI Conference on Artificial Intelligence, 2020 In this paper, we explore a general Aggregated Gradient Langevin Dynamics framework (AGLD) for the Markov Chain Monte Carlo (MCMC) sampling. We investigate the nonasymptotic convergence of AGLD with a unified analysis for different data accessing (e.g. random access, cyclic access and random reshuffle) and snapshot updating strategies, under convex and
Zhang, Chao +5 more
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, 2018 We consider the problem of sampling from constrained distributions, which has posed significant challenges to both non-asymptotic analysis and algorithmic design. We propose a unified framework, which is inspired by the classical mirror descent, to derive novel first-order sampling schemes. We prove that, for a general target distribution with strongly
Hsieh, Ya-Ping +3 more
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Current-induced dynamics in carbon atomic contacts
Beilstein Journal of Nanotechnology, 2011 Background: The effect of electric current on the motion of atoms still poses many questions, and several mechanisms are at play. Recently there has been focus on the importance of the current-induced nonconservative forces (NC) and Berry-phase derived ...
Jing-Tao Lü +3 more
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Relativistic Langevin dynamics: charm versus beauty
European Physical Journal C: Particles and Fields, 2020 The production of heavy quarks (charm and beauty) provides unique insights into the transport properties of the Quark–Gluon Plasma (QGP) in heavy-ion collisions.
Shuang Li, Wei Xiong, Renzhuo Wan
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Error Analysis of Modified Langevin Dynamics [PDF]
Journal of Statistical Physics, 2016 We consider Langevin dynamics associated with a modified kinetic energy vanishing for small momenta. This allows us to freeze slow particles, and hence avoid the re-computation of inter-particle forces, which leads to computational gains. On the other hand, the statistical error may increase since there are a priori more correlations in time.
Redon, Stephane +2 more
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