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相关论文: The Generalized Langevin Equation with a power-law…

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The Generalized Langevin Equation (GLE) is a Stochastic Integro-Differential Equation that is commonly used to describe the velocity of microparticles that move randomly in viscoelastic fluids. Such particles commonly exhibit what is known…

概率论 · 数学 2017-11-03 Scott A McKinley , Hung D Nguyen

In this paper, we study a non-Markovian generalized relativistic Langevin equation (GRLE). We show that when the memory kernel is a sum of exponentials, the GRLE is equivalent to a Markovian system with added variables. We establish the…

概率论 · 数学 2026-03-17 Ethan Baker , Manh Hong Duong , Hung Dang Nguyen

Finding the dynamical law of observable quantities lies at the core of physics. Within the particular field of statistical mechanics, the generalized Langevin equation (GLE) comprises a general model for the evolution of observables…

We consider the generalized Langevin equation (GLE) in a harmonic potential with power law decay memory. We study the anomalous diffusion of the particle's displacement and velocity. By comparison with the free particle situation in which…

概率论 · 数学 2023-08-02 Gustavo Didier , Hung D. Nguyen

We consider a system of interacting particles governed by the generalized Langevin equation (GLE) in the presence of external confining potentials, singular repulsive forces, as well as memory kernels. Using a Mori-Zwanzig approach, we…

概率论 · 数学 2024-03-15 Manh Hong Duong , Hung D. Nguyen

We study asymptotic properties of the Generalized Langevin Equation (GLE) in the presence of a wide class of external potential wells with a power-law decay memory kernel. When the memory can be expressed as a sum of exponentials, a class…

概率论 · 数学 2021-03-10 Hung D. Nguyen

The Fractional Langevin Equation (FLE) describes a non-Markovian Generalized Brownian Motion with long time persistence (superdiffusion), or anti-persistence (subdiffusion) of both velocity-velocity correlations, and position increments. It…

统计力学 · 物理学 2011-07-11 P. Siegle , I. Goychuk , P. Hanggi

We study the statistically invariant structures of the nonlinear generalized Langevin equation (GLE) with a power-law memory kernel. For a broad class of memory kernels, including those in the subdiffusive regime, we construct solutions of…

概率论 · 数学 2023-01-10 David P. Herzog , Jonathan C. Mattingly , Hung D. Nguyen

The generalized Langevin equation (GLE) is a universal model for particle velocity in a viscoelastic medium. In this paper, we consider the GLE family with fractional memory kernels. We show that, in the critical regime where the memory…

概率论 · 数学 2021-03-10 Gustavo Didier , Hung D. Nguyen

We introduce a hybrid projection scheme that combines linear Mori projection and conditional Zwanzig projection techniques and use it to derive a Generalized Langevin Equation (GLE) for a general interacting many-body system. The resulting…

化学物理 · 物理学 2022-08-31 Cihan Ayaz , Benjamin A. Dalton , Roland R. Netz

Various qualitative properties of solutions to the generalized Langevin equation (GLE) in a periodic or a confining potential are studied in this paper. We consider a class of quasi-Markovian GLEs, similar to the model that was introduced…

数学物理 · 物理学 2015-05-18 M. Ottobre , G. A. Pavliotis

The Generalized Langevin Equation (GLE) has been recently suggested to simulate the time evolution of classical solid and molecular systems when considering general non-equilibrium processes. In this approach, a part of the whole system (an…

统计力学 · 物理学 2014-04-23 L. Stella , C. D. Lorenz , L. Kantorovich

We study the design and implementation of numerical methods to solve the generalized Langevin equation (GLE) focusing on canonical sampling properties of numerical integrators. For this purpose, we cast the GLE in an extended phase space…

数值分析 · 数学 2020-12-09 Benedict Leimkuhler , Matthias Sachs

The Generalized Langevin Equation (GLE) can be derived from a particle-bath Hamiltonian, in both classical and quantum dynamics, and provides a route to the (both Markovian and non-Markovian) fluctuation-dissipation theorem (FDT). All…

统计力学 · 物理学 2018-07-04 Bingyu Cui , Alessio Zaccone

It has been become standard practice to describe steady-state non-equilibrium phenomena by Langevin equations with colored noise and time-dependent friction kernels that do not obey the fluctuation-dissipation theorem, but since these…

统计力学 · 物理学 2023-10-03 Roland R. Netz

Modeling non-Markovian time series is a recent topic of research in many fields such as climate modeling, biophysics, molecular dynamics, or finance. The generalized Langevin equation (GLE), given naturally by the Mori-Zwanzig projection…

数据分析、统计与概率 · 物理学 2022-07-25 Clemens Willers , Oliver Kamps

In this paper, we study the diffusive limit of solutions to the generalized Langevin equation (GLE) in a periodic potential. Under the assumption of quasi-Markovianity, we obtain sharp longtime equilibration estimates for the GLE using…

数学物理 · 物理学 2021-02-03 G. A. Pavliotis , G. Stoltz , U. Vaes

The generalized Langevin equation (GLE), derived by projection from a general many-body Hamiltonian, exactly describes the dynamics of an arbitrary coarse-grained variable in a complex environment. However, analysis and prediction of…

数据分析、统计与概率 · 物理学 2024-09-25 Henrik Kiefer , Denis Furtel , Cihan Ayaz , Anton Klimek , Jan O. Daldrop , Roland R. Netz

Generalized Langevin dynamics (GLD) arise in the modeling of a number of systems, ranging from structured fluids that exhibit a viscoelastic mechanical response, to biological systems, and other media that exhibit anomalous diffusive…

计算物理 · 物理学 2013-07-25 Andrew D. Baczewski , Stephen D. Bond

A generalized Langevin equation with fluctuating diffusivity (GLEFD) is proposed, and it is shown that the GLEFD satisfies a generalized fluctuation-dissipation relation. If the memory kernel is a power law, the GLEFD exhibits anomalous…

统计力学 · 物理学 2022-09-28 Tomoshige Miyaguchi
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