arXiv subjects

Bradley A. Shadwick

Publications and source records attributed to Bradley A. Shadwick.

2 recordsLinked to original sources

arXiv2021

Spin-dependent two-color Kapitza-Dirac effects

In this paper we present an analysis of the spin behavior of electrons propagating through a laser field. We present an experimentally realizable scenario in which spin-dependent effects of the interaction between the laser and the electrons are dominant. The laser interaction strength and incident electron velocity are in the nonrelativistic domain. This analysis may thus lead to novel methods of creating and characterizing spin-polarized nonrelativistic femtosecond electron pulses.

quant-ph↗

arXiv2021

Hamiltonian fluid reduction of the 1.5D Vlasov-Maxwell equations

We consider the Vlasov-Maxwell equations with one spatial direction and two momenta, one in the longitudinal direction and one in the transverse direction. By solving the Jacobi identity, we derive reduced Hamiltonian fluid models for the density, the fluid momenta and the second order moments, related to the pressure tensor. We also provide the Casimir invariants of the reduced Poisson bracket. We show that the linearization of the equations of motion around homogeneous equilibria reproduces some essential feature of the kinetic model, the Weibel instability.

nlin.CD↗