Collective Excitations of Low Dimensional Trapped Bose-Condensed Gas

Autor:	Ji-sheng Chen, Yun-Wen Luo
Rok vydání:	2013
Předmět:	Condensed Matter::Quantum Gases Trap (computing) Physics Physics and Astronomy (miscellaneous) Condensed Matter::Other Homogeneous Excited state Condensation Energy spectrum Quasiparticle Harmonic potential Atomic physics
Zdroj:	Communications in Theoretical Physics. 60:673-676
ISSN:	0253-6102
DOI:	10.1088/0253-6102/60/6/07
Popis:	In this paper, we investigate excited characteristic of the weakly interacting quasi-one-dimensional (1D) and quasi-two-dimensional (2D) Bose—Einstein condensation (BEC) in harmonic potential trap. The energy spectrum and the analytical expression of the sound velocity are obtained and analyzed. Compared with 3-Dimensional homogeneous Bose-condensed gas occasion, the sound velocity of 2D Bose-Einstein condensation in harmonic potential trap is smaller.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::af334dc9bbaf963c040c5344770afa6b https://doi.org/10.1088/0253-6102/60/6/07 Zobrazit plný text záznamu