Bogoliubov-Cherenkov radiation in an atom laser

B. M. Henson, Xuguang Yue, S. S. Hodgman, D. K. Shin, L. A. Smirnov, E. A. Ostrovskaya, X. W. Guan, A. G. Truscott

    Research output: Contribution to journalArticlepeer-review

    10 Citations (Scopus)

    Abstract

    We develop a simple yet powerful technique to study Bogoliubov-Cherenkov radiation by producing a pulsed atom laser from a strongly confined Bose-Einstein condensate. Such radiation results when the atom laser pulse falls past a Bose-Einstein condensate at high-hypersonic speeds, modifying the spatial profile to display a characteristic twin jet structure and a complicated interference pattern. The experimental observations are in excellent agreement with mean-field numerical simulations and an analytic theory. Due to the highly hypersonic regime reached in our experiment, this system offers a highly controllable platform for future studies of condensed-matter analogs of quantum electrodynamics at ultrarelativistic speeds.

    Original languageEnglish
    Article number063601
    JournalPhysical Review A
    Volume97
    Issue number6
    DOIs
    Publication statusPublished - 4 Jun 2018

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