Anomalous tunneling of spin wave in polar state of spin-1 BEC

Shohei Watabe, Yusuke Kato, Yoji Ohashi

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

We investigate tunneling properties of collective spin-wave excitations in the polar state of a spin-1 spinor Bose-Einstein condensate. Within the mean-field theory at T = 0, we show that when the condensate is in the critical supercurrent state, the spin wave mode exhibits perfect transmission through a nonmagnetic potential barrier in the low energy limit, unless the strength of a spin-independent interaction co equals that of a spin-dependent interaction co Such an anomalous tunneling behavior is absent in the case of a magnetic barrier. We also clarify a scaling law of the transmission probability as a function of the mode energy.

Original languageEnglish
Article number012079
JournalJournal of Physics: Conference Series
Volume400
Issue numberPART 1
DOIs
Publication statusPublished - 2012 Jan 1
Event26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China
Duration: 2011 Aug 102011 Aug 17

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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