4 papers
Temperature-Dependent Frequency Shifts in Collective Excitations of a Bose-Einstein Condensate
Hualin Shi, Wei-Mou Zheng
By including the contribution of the thermal cloud to the Lagrangian of the condensate of a Bose gas, we extend the time-dependent variational method at zero temperature to study t…
The Energy of a Trapped Interacting Bose Gas
Hualin Shi, Wei-Mou Zheng
A Bose gas in an external potential is studied by means of the semi-classical approximation. Analytical results are derived for the energy of an interacting Bose gas in a generic p…
Thermodynamic Properties of a Trapped Interacting Bose Gas
Hualin Shi, Wei-Mou Zheng
A Bose gas in an external potential is studied by means of the local density approximation. Analytical results are derived for the thermodynamic properties of an ideal Bose gas in…
Critical Temperature of a Trapped Interacting Bose Gas in the Local Density Approximation
Hualin Shi, Wei-Mou Zheng
The Bose gas in an external potential is studied by means of the local density approximation. An analytical result is derived for the dependence of the critical temperature of Bose…