Strong coupling effects on p-wave contacts of a one-component ultracold Fermi gas

ORAL

Abstract

In this presentation, we investigate two p-wave contacts Cv and CR, which are respectively related to the scattering volume v and the effective range R of a p-wave interaction, of a one-component ultracold Fermi gas within the framework of a strong-coupling theory developed by Nozieres and Schmitt-Rink [1]. We show that, as decreasing temperature, while in the strong-coupling regime Cv monotonically increases, in the weak-coupling regime Cv start to decrease at some temperature. We clarify the physical origin of this non-monotonic temperature dependence of Cv in the weak-coupling regime.
By including the effects of a harmonic trap potential within the local-density approximation, we also directory compare our results with recent measurment on 40K Fermi gas [2]. Since the p-wave contacts connect microscopic properties with thermodynamic properties of p-wave interacting Fermi gas, our results would be helpful for understanding the strong coupling effects in this system.
[1] P. Nozieres and S. Schmitt-Rink, J. Low Temp. Phys. 59, 195 (1985).
[2] C. Luciuk, S. Trotzky, S. Smale, Z. Yu, S. Zhang, and J. H. Thywissen, Nat. Phys. 12, 599 (2016).

Presenters

  • Daisuke Inotani

    Physics, Keio University

Authors

  • Daisuke Inotani

    Physics, Keio University

  • Yoji Ohashi

    Physics, Keio University, Department of Physics, Keio University