Results 41 to 50 of about 3,220,420 (230)

EXISTENCE RESULTS OF SOLUTIONS FOR ANTI-PERIODIC FRACTIONAL LANGEVIN EQUATION

open access: yes, 2020
Recently, Khalili and Yadollahzadeh [9] have investigated the uniqueness and existence of solution u(t), t ∈ [0, 1] for a class of nonlocal boundary conditions to fractional Langevin equation.
A. Salem
semanticscholar   +1 more source

Calculating the equation of state of dense quark-gluon plasma using the complex Langevin equation [PDF]

open access: yesPhysical Review D, 2019
The pressure and energy density of the quark-gluon plasma at finite baryon chemical potential are calculated using the Complex Langevin equation. The stout smearing procedure is generalized for the SL(3,$\mathcal{C}$) manifold allowing the usage of an ...
D. Sexty
semanticscholar   +1 more source

The multi-dimensional generalized Langevin equation for conformational motion of proteins.

open access: yesJournal of Chemical Physics, 2019
Using the generalized Langevin equation (GLE) is a promising approach to build coarse-grained (CG) models of molecular systems since the GLE model often leads to more accurate thermodynamic and kinetic predictions than Brownian dynamics or Langevin ...
Hee Sun Lee, Surl-Hee Ahn, Eric F Darve
semanticscholar   +1 more source

Probability density of the fractional Langevin equation with reflecting walls. [PDF]

open access: yesPhysical Review E, 2019
We investigate anomalous diffusion processes governed by the fractional Langevin equation and confined to a finite or semi-infinite interval by reflecting potential barriers.
T. Vojta, Sarah C. Skinner, R. Metzler
semanticscholar   +1 more source

Effective Potential for Complex Langevin Equations

open access: yes, 2009
We construct an effective potential for the complex Langevin equation on a lattice. We show that the minimum of this effective potential gives the space-time and Langevin time average of the complex Langevin field.
Aarts   +21 more
core   +1 more source

Stochastic description for open quantum systems [PDF]

open access: yes, 2001
A linear open quantum system consisting of a harmonic oscillator linearly coupled to an infinite set of independent harmonic oscillators is considered; these oscillators have a general spectral density function and are initially in a Gaussian state ...
Calzetta, Esteban   +2 more
core   +2 more sources

Thermodynamic Langevin equations

open access: yesPhysical Review E
The physical significance of the stochastic processes associated to the generalized Gibbs ensembles is scrutinized here with special attention to the thermodynamic fluctuations of small systems. The contact with the environment produces an interaction entropy, which controls the distribution of fluctuations and allows writing the generalized Gibbs ...
Amilcare Porporato   +2 more
openaire   +3 more sources

New method for the investigation of mode coupling in graded-index polymer photonic crystal fibers using the Langevin stochastic differential equation

open access: yesFrontiers in Physics
The mode coupling in a graded-index polymer photonic crystal fiber (GI PPCF) with a solid core has been investigated using the Langevin equation. Based on the computer-simulated Langevin force, the Langevin equation is numerically integrated.
Svetislav Savović   +5 more
doaj   +1 more source

Memory effects in non-adiabatic molecular dynamics at metal surfaces

open access: yes, 2010
We study the effect of temporal correlation in a Langevin equation describing non-adiabatic dynamics at metal surfaces. For a harmonic oscillator the Langevin equation preserves the quantum dynamics exactly and it is demonstrated that memory effects are ...
Olsen, Thomas, Schiøtz, Jakob
core   +1 more source

Thermal Properties of an Inflationary Universe [PDF]

open access: yes, 1996
An energetic justification of a thermal component during inflation is given. The thermal component can act as a heat reservoir which induces thermal fluctuations on the inflaton field system.
A. Berera   +40 more
core   +4 more sources

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