Results 21 to 30 of about 11,396 (164)
On the Fractal Langevin Equation
Fractal and Fractional, 2019 In this paper, fractal stochastic Langevin equations are suggested, providing a mathematical model for random walks on the middle- τ Cantor set.
Alireza Khalili Golmankhaneh
doaj +1 more source
Generalized Langevin Equation and the Prabhakar Derivative
Mathematics, 2017 We consider a generalized Langevin equation with regularized Prabhakar derivative operator. We analyze the mean square displacement, time-dependent diffusion coefficient and velocity autocorrelation function.
Trifce Sandev
doaj +1 more source
Thermodynamic Langevin equations
Physical Review EThe 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
Frontiers in PhysicsThe 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
On the Existence and Uniqueness of Solution to Fractional-Order Langevin Equation
Advances in Mathematical Physics, 2020 In this work, we give sufficient conditions to investigate the existence and uniqueness of solution to fractional-order Langevin equation involving two distinct fractional orders with unprecedented conditions (three-point boundary conditions including ...
Ahmed Salem, Noorah Mshary
doaj +1 more source
Results in Physics, 2019 The generalized Langevin equation (GLE) is extended to the case when not only the tagged particle but also the surrounding bath particles respond to the external harmonic potential K(x).
Vladimír Lisý, Jana Tóthová
doaj +1 more source
Complex Langevin equations and Schwinger–Dyson equations
Nuclear Physics B, 2009 Stationary distributions of complex Langevin equations are shown to be the complexified path integral solutions of the Schwinger-Dyson equations of the associated quantum field theory. Specific examples in zero dimensions and on a lattice are given. Relevance to the study of quantum field theory phase space is discussed.
Guralnik, Gerald, Pehlevan, Cengiz
openaire +2 more sources
Boundary Value Problems, 2023 This research inscription gets to grips with two novel varieties of boundary value problems. One of them is a hybrid Langevin fractional differential equation, whilst the other is a coupled system of hybrid Langevin differential equation encapsuling a ...
A. Boutiara +3 more
doaj +1 more source
On the Link between the Langevin Equation and the Coagulation Kernels of Suspended Nanoparticles
Fractal and Fractional, 2022 The ability of the Langevin equation to predict coagulation kernels in the transition regime (ranging from ballistic to diffusive) is not commonly discussed in the literature, and previous numerical works are lacking a theoretical justification.
José Morán
doaj +1 more source
An Analysis of Vehicular Traffic Flow Using Langevin Equation
Promet (Zagreb), 2015 Traffic flow data are stochastic in nature, and an abundance of literature exists thereof. One way to express stochastic data is the Langevin equation. Langevin equation consists of two parts.
Çağlar Koşun +2 more
doaj +1 more source