Anomalous Transport in the Superfluid Fluctuation Regime

Shun Uchino, Masahito Ueda

研究成果: Article査読

18 被引用数 (Scopus)

抄録

Motivated by a recent experiment in ultracold atoms [S. Krinner et al., Proc. Natl. Acad. Sci. U.S.A. 113, 8144 (2016)PNASA60027-842410.1073/pnas.1601812113], we analyze transport of attractively interacting fermions through a one-dimensional wire near the superfluid transition. We show that in a ballistic regime where the conductance is quantized in the absence of interaction, the conductance is renormalized by superfluid fluctuations in reservoirs. In particular, the particle conductance is strongly enhanced, and the conductance plateau is blurred by emergent bosonic pair transport. For spin transport, in addition to the contact resistance, the wire itself is resistive, leading to a suppression of the measured spin conductance. Our results are qualitatively consistent with the experimental observations.

本文言語English
論文番号105303
ジャーナルPhysical Review Letters
118
10
DOI
出版ステータスPublished - 2017 3月 8
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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