Low Energy Excitation Spectra of Trapped Bose Condensates

• Authors: L. You , W. Hoston , M. Lewenstein , M. Marinescu
• Languages of publication: EN

Abstracts

EN

We discuss our numerical studies of the low energy excitations of trapped Bose condensates using a Bogoliubov-Hartree treatment. In the zero temperature limit, the lowest few excitation frequencies calculated within the Bogoliubov approximation agree well with the experimental data. Finite temperature results obtained using the Popov approximation display qualitative differences from the experimental data close to the critical temperature region. Details of our numerical approach are presented and comparison with other results is discussed.

Keywords

EN

03.75.Fi; 67.90.+z

Discipline

• 67.90.+z: Other topics in quantum fluids and solids (restricted to new topics in section 67)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 1998
• Volume: 93
• Issue: 1
• Pages: 211-235

Dates

published

1998-01

Contributors

author

L. You

• School of Physics, Georgia Institute of Technology, Atlanta, GA 30332-0430, USA

author

W. Hoston

• Institute for Theoretical Atomic and Molecular Physics Harvard-Smithsonian Center for Astrophysics 60 Garden Street, MS 14, Cambridge, Massachusetts 02138, USA

author

M. Lewenstein

• Commissariat à l'Energie Atomique, DSM/DRECAM/SPAM Centre d'Etudes de Saclay 91191 Gif-sur-Yvette, France

author

M. Marinescu

• School of Physics, Georgia Institute of Technology, Atlanta, GA 30332-0430, USA

Identifiers

DOI

10.12693/APhysPolA.93.211