Normal-state properties of a unitary Bose–Fermi mixture: A combined strong-coupling approach with universal thermodynamics

Digvijay Kharga, Hiroyuki Tajima, Pieter Van Wyk, Daisuke Inotani, Yoji Ohashi

研究成果: Article査読

抄録

We theoretically investigate normal-state properties of a unitary Bose–Fermi mixture. Including strong hetero-pairing fluctuations, we evaluate the Bose and Fermi chemical potential, internal energy, pressure, entropy, as well as specific heat at constant volume CV, within the framework of a combined strong-coupling theory with exact thermodynamic identities. We show that hetero-pairing fluctuations at the unitarity cause non-monotonic temperature dependence of CV, being qualitatively different from the monotonic behavior of this quantity in the weak- and strong-coupling limit. On the other hand, such an anomalous behavior is not seen in the other quantities. Our results indicate that the specific heat CV, which has recently become observable in cold atom physics, is a useful quantity for understanding strong-coupling aspects of this quantum system.

本文言語English
論文番号074302
ジャーナルJournal of the Physical Society of Japan
86
7
DOI
出版ステータスPublished - 2017 7月 15

ASJC Scopus subject areas

  • 物理学および天文学(全般)

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