Quasiresonant tunneling of phonons in bosonic superfluid-insulator- superfluid junctions

I. Danshita, N. Yokoshi, S. Kurihara

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    Abstract

    We investigate the quasiresonant tunneling of phonon excitations across a potential barrier spatially separating two condensates with different macroscopic phases. We confirm that the quasiresonant tunneling occurs through the quasibound state. The quasibound state is induced by a potential well created by the condensate density. We analyze the relation between the phase difference Φ of two condensates and the transmission coefficient T by solving the Bogoliubov-de Gennes equations. As a result, the transmission coefficient T is found to depend strongly on Φ because of the Φ dependence of the quasibound state.

    Original languageEnglish
    Pages (from-to)371-375
    Number of pages5
    JournalLaser Physics
    Volume15
    Issue number2
    Publication statusPublished - 2005 Feb

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    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics
    • Physics and Astronomy (miscellaneous)

    Cite this

    Danshita, I., Yokoshi, N., & Kurihara, S. (2005). Quasiresonant tunneling of phonons in bosonic superfluid-insulator- superfluid junctions. Laser Physics, 15(2), 371-375.