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Excitations and phase segregation in a two component Bose-Einstein condensate
preprintposted on 2006-04-03, 10:24 authored by A.S. Alexandrov, V.V. Kabanov
Bogoliubov-de Gennes (BdG) equations and the excitation spectrum of a twocomponent Bose-Einstein condensate (BEC) are derived with an arbitrary interaction between bosons, including long-range and short range forces. The nonconverting BEC mixture segregates into two phases for some two-body interactions. Gross-Pitaevskii (GP) equations are solved for the phase segregated BEC. A possibility of boundary-surface and other localised excitations is studied.
NotesThis is a pre-print.