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

Shohei Watabe, Yusuke Kato, Yoji Ohashi

研究成果: Conference article査読

2 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号012079
ジャーナルJournal of Physics: Conference Series
400
PART 1
DOI
出版ステータスPublished - 2012
外部発表はい
イベント26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China
継続期間: 2011 8月 102011 8月 17

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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