Quantum state portrayal of a Bose condensed gas

Author

Rogel-Salazar, J. ; New, G.H.C. ; Choi, S. ; Burnett, K.

Author_Institution

Dept. of Phys., Imperial Coll., London, UK

fYear

2002

fDate

19-24 May 2002

Firstpage

87

Lastpage

88

Abstract

Summary form only given. With the realisation of Bose-Einstein condensation in dilute gases, it has been possible to study the dynamics of quantum fields at finite temperatures. The Gross-Pitaevskii equation (GPE) has proved to be a very useful tool for describing Bose-Einstein condensates (BECs) and has shown very good agreement with experimental results at low temperatures. In the present paper we apply the mean-field approximation to describe the quantum state of a Bose-Einstein condensate, using a phase-space representation to visualise such a state.

Keywords

Bose-Einstein condensation; Schrodinger equation; Thomas-Fermi model; quantum optics; Bose condensed gas; Bose-Einstein condensation; Gross-Pitaevskii equation; Q-function; Schrodinger equation; Thomas-Fermi approximation; ballistic expansion; cat states; coherent state; dilute gases; mean-field approximation; phase-space representation; quantum state portrayal; squeezed state; trapping potential; weighting function; Partial differential equations; Quantum theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 2002. QELS '02. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Long Beach, CA, USA

Print_ISBN

1-55752-708-3

Type

conf

DOI

10.1109/QELS.2002.1031136

Filename

1031136