Zobrazeno 1 - 10
of 533
pro vyhledávání: '"Piasecki, J"'
Publikováno v:
Journal of Statistical Mechanics: Theory and Experiment, IOP Publishing, 2019
We consider a Bose gas with two-body Kac-like scaled interactions V $\gamma$ (r) = $\gamma$ 3 v($\gamma$r) where v(x) is a given repulsive and integrable potential, while $\gamma$ is a positive parameter which controls the range of the interactions a
Externí odkaz:
http://arxiv.org/abs/1912.07454
We analyze the Casimir forces for an ideal Bose gas enclosed between two infinite parallel walls separated by the distance D. The walls are characterized by the Dirichlet boundary conditions. We show that if the thermodynamic state with Bose-Einstein
Externí odkaz:
http://arxiv.org/abs/1910.04407
Autor:
Cornu, F., Piasecki, J.
We study the stationary state of a rough granular sphere immersed in a thermal bath composed of point particles. When the center of mass of the sphere is fixed the stationary angular velocity distribution is shown to be Gaussian with an effective tem
Externí odkaz:
http://arxiv.org/abs/0805.2887
The kinetics of a granular planar rotator with a fixed center undergoing inelastic collisions with bath particles is analyzed both numerically and analytically by means of the Boltzmann equation. The angular velocity distribution evolves from quasi-g
Externí odkaz:
http://arxiv.org/abs/cond-mat/0610112
Autor:
Cornu, F., Piasecki, J.
We derive the exact solution of the Boltzmann kinetic equation for the three-dimensional Lorentz model in the presence of a constant and uniform magnetic field. The velocity distribution of the electrons reduces exponentially fast to its spherically
Externí odkaz:
http://arxiv.org/abs/cond-mat/0603505
We consider a one-dimensional system consisting of a granular tracer particle of mass $M$ in a bath of thermalized particles each of mass $m$. When the mass ratio, $M/m$, is equal to the coefficient of restitution, $\alpha$, the system maps to a a on
Externí odkaz:
http://arxiv.org/abs/cond-mat/0602558
Autor:
Piasecki, J., Viot, P.
We show how inelastic collisions induce a power law with exponent -3 in the decay of the angular velocity distribution of anisotropic particles with sufficiently small moment of inertia. We investigate this question within the Boltzmann kinetic theor
Externí odkaz:
http://arxiv.org/abs/cond-mat/0511573
Autor:
Martin, Ph. A., Piasecki, J.
We study a homogeneous Bose gas with purely repulsive forces. Using the Kac scaling of the binary potential we derive analytically the form of the thermodynamic functions of the gas for small but finite values of the scaling parameter in the low dens
Externí odkaz:
http://arxiv.org/abs/cond-mat/0409022
The adhesive dynamics of a one-dimensional aggregating gas of point particles is rigorously described. The infinite hierarchy of kinetic equations for the distributions of clusters of nearest neighbours is shown to be equivalent to a system of two co
Externí odkaz:
http://arxiv.org/abs/cond-mat/9911346
We consider a system of non-interacting charged particles moving in two dimensions among fixed hard scatterers, and acted upon by a perpendicular magnetic field. Recollisions between charged particles and scatterers are unavoidable in this case. We d
Externí odkaz:
http://arxiv.org/abs/cond-mat/9903235