Zobrazeno 1 - 10
of 668
pro vyhledávání: '"Joel L. Lebowitz"'
Autor:
Joel L. Lebowitz
Publikováno v:
Revista Brasileira de Ensino de Física, Vol 28, Iss 3, Pp 267-268
Externí odkaz:
https://doaj.org/article/3c906bb6dc4c48e2a3c3f0cfcde8a6f8
We derive macroscopic equations for a generalized contact process that is inspired by a neuronal integrate and fire model on the lattice $\mathbb{Z}^d$. The states at each lattice site can take values in $0,\ldots,k$. These can be interpreted as neur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::16c54e37e9fe8224934542e05261bcae
https://hdl.handle.net/11697/200819
https://hdl.handle.net/11697/200819
We investigate the properties of a harmonic chain in contact with a thermal bath at one end and subjected, at its other end, to a periodic force. The particles also undergo a random velocity reversal action, which results in a finite heat conductivit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::335adb8c366988737b0b5e914830c6e4
http://arxiv.org/abs/2205.03839
http://arxiv.org/abs/2205.03839
We derive a macroscopic heat equation for the temperature of a pinned harmonic chain subject to a periodic force at its right side and in contact with a heat bath at its left side. The microscopic dynamics in the bulk is given by the Hamiltonian equa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d1bc24c7117c9d1239508873952a692
Autor:
Kevin L. Jensen, Andrew Shabaev, Jeanne Riga, Donald A. Shiffler, Joel L. Lebowitz, Rebecca Seviour
Publikováno v:
Physical Review A. 104
Publikováno v:
Journal of Applied Physics. 132:124303
Electron emission into a nanogap is not instantaneous, which presents a difficulty in simulating ultra-fast behavior using particle models. A method of approximating the transmission and reflection delay (TARD) times of a wave packet interacting with
Publikováno v:
Journal of Physics A: Mathematical and Theoretical. 55:394002
To illustrate Boltzmann's construction of an entropy function that is defined for a microstate of a macroscopic system, we present here the simple example of the free expansion of a one dimensional gas of non-interacting point particles. The construc
Publikováno v:
Nonlinearity. 32:1352-1374
We establish quantitative bounds on the rate of approach to equilibrium for a system with infinitely many degrees of freedom evolving according to a one-dimensional focusing nonlinear Schrodinger equation with diffusive forcing. Equilibrium is descri
Publikováno v:
Physical Review B. 103
A numerical solution to the time evolution equation of the Wigner distribution function (WDF) with an accuracy necessary to simulate the passage of a wave packet past a barrier is developed, where quantum effects require high accuracy and fine discre