Bogoliubov Quasiparticles Carried by Dark Solitonic Excitations in Nonuniform Bose-Einstein Condensates
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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. -
References
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