Results 11 to 20 of about 2,979 (136)

The Fokker–Planck equation of the superstatistical fractional Brownian motion with application to passive tracers inside cytoplasm [PDF]

open access: yesRoyal Society Open Science, 2022
By collecting from literature data experimental evidence of anomalous diffusion of passive tracers inside cytoplasm, and in particular of subdiffusion of mRNA molecules inside live Escherichia coli cells, we obtain the probability density function of ...
C. Runfola, S. Vitali, G. Pagnini
doaj   +2 more sources

On the Stochastic Dynamics for the Regularized Kappa-Distributed Plasmas [PDF]

open access: yesEntropy
The generalized fluctuation–dissipation relations that produce the regularized Kappa distributions are studied. The two-variable Fokker–Planck equation, as well as its reductions in the absence of potential and in the overdamped limit, are considered ...
Ran Guo
doaj   +2 more sources

Fokker-Planck equations for a trapped particle in a quantum-thermal Ohmic bath: general theory and applications to Josephson junctions

open access: yesAAPPS Bulletin, 2023
We consider a particle trapped by a generic external potential and under the influence of a quantum-thermal Ohmic bath. Starting from the Langevin equation, we derive the corresponding Schwinger-Keldysh action.
Koichiro Furutani, Luca Salasnich
doaj   +1 more source

From the Boltzmann equation with non-local correlations to a standard non-linear Fokker-Planck equation

open access: yesPhysics Letters B, 2023
In this work, we study the formal connections between the non-linear Fokker-Planck Equation associated with the non-additive entropy and the Boltzmann Equation with the non-additive correlation functional.
Airton Deppman   +3 more
doaj   +1 more source

A Simple Stochastic Differential Equation with Discontinuous Drift [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2013
In this paper we study solutions to stochastic differential equations (SDEs) with discontinuous drift. We apply two approaches: The Euler-Maruyama method and the Fokker-Planck equation and show that a candidate density function based on the Euler ...
Maria Simonsen   +3 more
doaj   +1 more source

Demonstration of a family of X-ray dark-field retrieval approaches on a common set of samples. [PDF]

open access: yesJ Synchrotron Radiat
This study aims to guide users of dark‐field imaging in selecting the most suitable technique for their imaging goals. To this end, we provide a summary table and highlight opportunities for future research into the sources of dark‐field contrast across emerging methods.There are various imaging setups capable of capturing dark‐field images, each with ...
Alloo SJ   +5 more
europepmc   +2 more sources

A note on hypocoercivity for kinetic equations with heavy-tailed equilibrium

open access: yesComptes Rendus. Mathématique, 2020
In this paper we are interested in the large time behavior of linear kinetic equations with heavy-tailed local equilibria. Our main contribution concerns the kinetic Lévy–Fokker–Planck equation, for which we adapt hypocoercivity techniques in order to ...
Ayi, Nathalie   +3 more
doaj   +1 more source

Nonlinear Kinetics on Lattices Based on the Kinetic Interaction Principle

open access: yesEntropy, 2018
Master equations define the dynamics that govern the time evolution of various physical processes on lattices. In the continuum limit, master equations lead to Fokker–Planck partial differential equations that represent the dynamics of physical ...
Giorgio Kaniadakis   +1 more
doaj   +1 more source

Classes of N-Dimensional Nonlinear Fokker-Planck Equations Associated to Tsallis Entropy

open access: yesEntropy, 2011
Several previous results valid for one-dimensional nonlinear Fokker-Planck equations are generalized to N-dimensions. A general nonlinear N-dimensional Fokker-Planck equation is derived directly from a master equation, by considering nonlinearitiesin the
Fernando D. Nobre   +2 more
doaj   +1 more source

Empirical Expression for AC Magnetization Harmonics of Magnetic Nanoparticles under High-Frequency Excitation Field for Thermometry

open access: yesNanomaterials, 2020
The Fokker–Planck equation accurately describes AC magnetization dynamics of magnetic nanoparticles (MNPs). However, the model for describing AC magnetization dynamics of MNPs based on Fokker-Planck equation is very complicated and the numerical ...
Zhongzhou Du   +5 more
doaj   +1 more source

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