Dynamics of Uniform Quantum Gases, II: Magnetic Susceptibility
Abstract
A general expression for temperature-dependent magnetic susceptibility of quantum gases composed of particles possessing both charge and spin degrees of freedom has been obtained within the framework of the generalized random-phase approximation. The conditions for the existence of dia-, para-, and ferro-magnetism have been analyzed in terms of a parameter involving single-particle charge and spin. The zero-temperature limit retrieves the expressions for the Landau and the Pauli susceptibilities for an electron gas. It is found for a Bose gas that on decreasing the temperature, it passes either through a diamagnetic incomplete Meissner-effect regime or through a paramagnetic-ferromagnetic large magnetization fluctuation regime before going to the Meissner phase at BEC critical temperature.
Keywords
Cite
@article{arxiv.0912.2841,
title = {Dynamics of Uniform Quantum Gases, II: Magnetic Susceptibility},
author = {J. Bosse and K. N. Pathak and G. S. Singh},
journal= {arXiv preprint arXiv:0912.2841},
year = {2015}
}