Results 21 to 30 of about 3,220,420 (230)

On the Generalized Langevin Equation for Simulated Annealing [PDF]

open access: yesSIAM/ASA J. Uncertain. Quantification, 2020
In this paper, we consider the generalised (higher order) Langevin equation for the purpose of simulated annealing and optimisation of nonconvex functions.
Martin Chak, N. Kantas, G. Pavliotis
semanticscholar   +1 more source

Scaling Limits for the Generalized Langevin Equation [PDF]

open access: yesJournal of nonlinear science, 2020
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 techniques from ...
G. Pavliotis, G. Stoltz, U. Vaes
semanticscholar   +1 more source

Explicit Solution of the Generalised Langevin Equation [PDF]

open access: yesJournal of statistical physics, 2020
Generating an initial condition for a Langevin equation with memory is a non trivial issue. We introduce a generalisation of the Laplace transform as a useful tool for solving this problem, in which a limit procedure may send the extension of memory ...
I. Di Terlizzi, F. Ritort, M. Baiesi
semanticscholar   +1 more source

Equation of state from complex Langevin simulations [PDF]

open access: yesEPJ Web of Conferences, 2022
We use complex Langevin simulations to study the QCD phase diagram with two light quark flavours. In this study, we use Wilson fermions with an intermediate pion mass of ∼ 480MeV. By studying thermodynamic quantities, in particular at lower temperatures,
Attanasio Felipe   +2 more
doaj   +1 more source

Inexpensive modeling of quantum dynamics using path integral generalized Langevin equation thermostats. [PDF]

open access: yesJournal of Chemical Physics, 2019
The properties of molecules and materials containing light nuclei are affected by their quantum mechanical nature. Accurate modeling of these quantum nuclear effects requires computationally demanding path integral techniques.
V. Kapil   +3 more
semanticscholar   +1 more source

On a generalization of fractional Langevin equation with boundary conditions

open access: yesAIMS Mathematics, 2022
In this work, we consider a generalization of the nonlinear Langevin equation of fractional orders with boundary value conditions. The existence and uniqueness of solutions are studied by using the results of the fixed point theory.
Zheng Kou, Saeed Kosari
doaj   +1 more source

Multi-Strip and Multi-Point Boundary Conditions for Fractional Langevin Equation

open access: yesFractal and Fractional, 2020
In the present paper, we discuss a new boundary value problem for the nonlinear Langevin equation involving two distinct fractional derivative orders with multi-point and multi-nonlocal integral conditions.
A. Salem, Balqees Alghamdi
semanticscholar   +1 more source

Langevin Equation in Heterogeneous Landscapes: How to Choose the Interpretation. [PDF]

open access: yesPhysical Review Letters
The Langevin equation is a common tool to model diffusion at a single-particle level. In nonhomogeneous environments, such as aqueous two-phase systems or biological condensates with different diffusion coefficients in different phases, the solution to a
Adrian Pacheco-Pozo   +5 more
semanticscholar   +1 more source

LANGEVIN EQUATION ON FRACTAL CURVES [PDF]

open access: yesFractals, 2016
We analyze random motion of a particle on a fractal curve, using Langevin approach. This involves defining a new velocity in terms of mass of the fractal curve, as defined in recent work. The geometry of the fractal curve, plays an important role in this analysis.
Satin, Seema, Gangal, A. D.
openaire   +3 more sources

From the Underdamped Generalized Elastic Model to the Single Particle Langevin Description

open access: yesMathematics, 2017
The generalized elastic model encompasses several linear stochastic models describing the dynamics of polymers, membranes, rough surfaces, and fluctuating interfaces.
Alessandro Taloni
doaj   +1 more source

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