Finite Temperatur Dynamic Susceptibility of the Free Bose Gas

Abstract

A detailed calculation of the real part of the finite temperature dynamic susceptibility of the free Bose gas is presented. After a short discussion on the different ways in which it can be calculated for temperatures above and below the Bose--Einstein transition temperature, its main properties and its evolution with $q$ and $T$ are analyzed. Finally, expressions for the lowest order energy weighted sum rules are also derived and studied.

To be published in Phys.Lett.A

References in corpus (4)

• Theory of Bose-Einstein condensation in trapped gases
• Bragg spectroscopy of a Bose-Einstein condensate
• Dynamic structure factor and momentum distribution of a trapped Bose gas
• On classical description of radiation from neutral fermion with anomalous magnetic moment