Bogoliubov Quasiparticles Carried by Dark Solitonic Excitations in Nonuniform Bose-Einstein Condensates
HONG Tao, WANG Yu-zhu, HUO Yun-sheng
Joint Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
Bogoliubov Quasiparticles Carried by Dark Solitonic Excitations in Nonuniform Bose-Einstein Condensates
HONG Tao;WANG Yu-zhu;HUO Yun-sheng
Joint Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800
关键词 ：
03.75.Fi ,
42.65.Tg ,
42.81.Dp
Abstract ： We consider the noncondensate part of the Bose gas in presence of dark solitons. We get a stationary equation of Bogoliubov quasiparticles and find that these Bogoliubov quasiparticles are confined by a dark soliton and carried to propagate with it. This model of the compound structure of the soliton and Bogoliubov quasiparticles provides more precise description of localized sound excitations in Bose-Einstein condensates.
Key words ：
03.75.Fi
42.65.Tg
42.81.Dp
出版日期: 1998-08-01
引用本文:
HONG Tao;WANG Yu-zhu;HUO Yun-sheng. Bogoliubov Quasiparticles Carried by Dark Solitonic Excitations in Nonuniform Bose-Einstein Condensates[J]. 中国物理快报, 1998, 15(8): 550-552.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y1998/V15/I8/550
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1998, Vol. 15 
