Quasiparticle inducing josephson effect in a Bose-Einstein condensate

S. Tsuchiya, Y. Ohashi

研究成果: Conference contribution

抄録

We investigate tunneling properties of Bogoliubov phonons in a Bose-Einstein condensate. We find that the quasiparticle current of Bogoliubov phonon is remarkably enhanced near the potential barrier at low energies. This leads to the increase of the transmission probability in the low energy region. We show that the quasiparticle current twists the relative phase of the condensate wavefunctions and induces a Josephson supercurrent through the barrier. The Josephson critical current is estimated by calculating the induced supercurrent and phase difference.

本文言語English
ホスト出版物のタイトルProceedings of the 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008
出版社World Scientific Publishing Co. Pte Ltd
ページ37-40
ページ数4
ISBN(印刷版)981428212X, 9789814282123
DOI
出版ステータスPublished - 2009
外部発表はい
イベント9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008 - Hatoyama, Saitama, Japan
継続期間: 2008 8 252008 8 28

出版物シリーズ

名前Proceedings of the 9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008

Other

Other9th International Symposium on Foundations of Quantum Mechanics in the Light of New Technology, ISQM-Tokyo 2008
CountryJapan
CityHatoyama, Saitama
Period08/8/2508/8/28

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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