Phase dependence of tunneling of phonon excitations between two Bose-Einstein condensates

Ippei Danshita, Nobuhiko Yokoshi, Susumu Kurihara

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    Abstract

    We consider the tunneling of phonon excitations across a potential barrier spatially separating two condensates, which have different phases. We analyze the relation between the phase difference of two condensates and the coefficient of tunneling transmission by solving the Bogoliubov-de Gennes equations. As a result, the transmission coefficient T depends strongly on because of the -dependent quasi-bound state.

    Original languageEnglish
    Pages (from-to)737-742
    Number of pages6
    JournalJournal of Low Temperature Physics
    Volume134
    Issue number1-2
    Publication statusPublished - 2004 Jan

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    ASJC Scopus subject areas

    • Physics and Astronomy (miscellaneous)

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