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Specific Heat of Ultracold Fermi Gas with a Uniaxially Anisotropic p-Wave Interaction at the Superfluid Transition Temperature

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Abstract

We theoretically investigate the specific heat at constant volume \(C_\mathrm{V}\) and strong-coupling effects in a Fermi gas with p-wave interaction. In a \(^{40}\)K Fermi gas, a uniaxial anisotropy of a p-wave interaction associated with a p-wave Feshbach resonance is expected as a result of the split of the p-wave Feshbach resonance by a dipole interaction. Including this, as well as pairing fluctuations, we show that \(C_\mathrm{V}\) is significantly affected by this anisotropy in the strong-coupling regime. We also discuss the physical origin of this effect. Our results would contribute to the further understanding of an ultracold p-wave Fermi gas.

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Acknowledgments

This work was supported by KiPAS project in Keio University. DI was supported by Grant-in-Aid for Young Scientists (B) (No. 16K17773) from JSPS in Japan. YO was supported by Grant-in-Aid for Scientific research from MEXT and JSPS in Japan (Nos. 15H00840, 15K00178, 16K05503).

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Authors and Affiliations

  1. Department of Physics, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan

    D. Inotani, P. van Wyk & Y. Ohashi

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  1. D. Inotani
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  2. P. van Wyk
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  3. Y. Ohashi
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Correspondence to D. Inotani.

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Inotani, D., van Wyk, P. & Ohashi, Y. Specific Heat of Ultracold Fermi Gas with a Uniaxially Anisotropic p-Wave Interaction at the Superfluid Transition Temperature. J Low Temp Phys 187, 685–691 (2017). https://doi.org/10.1007/s10909-016-1677-7

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  • DOI: https://doi.org/10.1007/s10909-016-1677-7

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