Results 41 to 50 of about 11,396 (164)

A Unified Approach to Solvability and Stability of Multipoint BVPs for Langevin and Sturm–Liouville Equations with CH–Fractional Derivatives and Impulses via Coincidence Theory

open access: yesFractal and Fractional
The Langevin equation is a model for describing Brownian motion, while the Sturm–Liouville equation is an important mechanical model. This paper focuses on the solvability and stability of nonlinear impulsive Langevin and Sturm–Liouville equations with ...
Kaihong Zhao, Juqing Liu, Xiaojun Lv
doaj   +1 more source

On the quantum langevin equation [PDF]

open access: yesJournal of Statistical Physics, 1987
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ford, G. W., Kac, M.
openaire   +3 more sources

Stability analysis of a class of Langevin equations in the frame of generalized Caputo fractional operator with nonlocal boundary conditions

open access: yesBoundary Value Problems
The main objective of the present paper is to establish the existence and uniqueness of solutions for the fractional Langevin equation involving the ϕ-Caputo fractional operator with nonlocal boundary conditions.
Sombir Dhaniya   +3 more
doaj   +1 more source

An attempt toward the generalized Langevin dynamics simulation

open access: yesCondensed Matter Physics, 2008
An attempt to generalize the Langevin dynamics simulation method is presented based on the generalized Langevin theory of liquids, in which the dynamics of both solute and solvent is treated by the generalized Langevin equations, but the integration of ...
B.Kim, S.-H.Chong, R.Ishizuka, F.Hirata
doaj   +1 more source

Synchronization and anti-synchroniztion of dynamically coupled networks

open access: yesNew Journal of Physics, 2019
We consider the coupling between two networks, each having N nodes whose individual dynamics is modeled by a two-state master equation. The intra-network interactions are all-to-all, whereas the inter-network interactions involve only a small percentage ...
Malgorzata Turalska   +2 more
doaj   +1 more source

Nonequilibrium solvent response force: What happens if you push a Brownian particle

open access: yesPhysical Review Research
In this Letter we discuss how to add forces to the Langevin equation. We derive an exact generalized Langevin equation for the dynamics of one particle subject to an external force embedded in a system of many interacting particles.
Fabian Koch, Jona Erle, Tanja Schilling
doaj   +1 more source

Full density matrix dynamics for large quantum systems: interactions, decoherence and inelastic effects

open access: yesNew Journal of Physics, 2013
We develop analytical tools and numerical methods for time evolving the total density matrix of the finite-size Anderson model. The model is composed of two finite metal grains, each prepared in canonical states of differing chemical potential and ...
Manas Kulkarni   +2 more
doaj   +1 more source

On the singular-hybrid type of the Langevin fractional differential equation with a numerical approach

open access: yesBoundary Value Problems
The nonlinear fractional Langevin equation is an important equation used in various areas of physics and mathematics. In this article, we focus on the singular-hybrid case of the generalized Langevin equations and prove the existence of a solution using ...
Samane Ijadi   +3 more
doaj   +1 more source

Current-induced dynamics in carbon atomic contacts

open access: yesBeilstein 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
doaj   +1 more source

Langevin equation in terms of conformable differential operators

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2020
In this paper, we establish sufficient criteria for the existence of solutions for a new kind of nonlinear Langevin equation involving conformable differential operators of different orders and equipped with integral boundary conditions.
Ahmad Bashir   +3 more
doaj   +1 more source

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