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

D. Inotani; P. van Wyk; Y. Ohashi

doi:10.1007/s10909-016-1677-7

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

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

Research output: Contribution to journal › Article › peer-review

Abstract

We theoretically investigate the specific heat at constant volume C_V and strong-coupling effects in a Fermi gas with p-wave interaction. In a ⁴⁰K 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_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.

Original language	English
Pages (from-to)	685-691
Number of pages	7
Journal	Journal of Low Temperature Physics
Volume	187
Issue number	5-6
DOIs	https://doi.org/10.1007/s10909-016-1677-7
Publication status	Published - 2017 Jun 1

Keywords

Specific heat
Ultracold Fermi gas
p-Wave superfluid

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Materials Science(all)
Condensed Matter Physics

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

abstract = "We theoretically investigate the specific heat at constant volume CV and strong-coupling effects in a Fermi gas with p-wave interaction. In a 40K 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 CV 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.",

keywords = "Specific heat, Ultracold Fermi gas, p-Wave superfluid",

author = "D. Inotani and {van Wyk}, P. and Y. Ohashi",

note = "Funding Information: 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). Publisher Copyright: {\textcopyright} 2016, Springer Science+Business Media New York.",

year = "2017",

month = jun,

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doi = "10.1007/s10909-016-1677-7",

language = "English",

volume = "187",

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journal = "Journal of Low Temperature Physics",

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T1 - Specific Heat of Ultracold Fermi Gas with a Uniaxially Anisotropic p-Wave Interaction at the Superfluid Transition Temperature

AU - Inotani, D.

AU - van Wyk, P.

AU - Ohashi, Y.

N1 - Funding Information: 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). Publisher Copyright: © 2016, Springer Science+Business Media New York.

PY - 2017/6/1

Y1 - 2017/6/1

N2 - We theoretically investigate the specific heat at constant volume CV and strong-coupling effects in a Fermi gas with p-wave interaction. In a 40K 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 CV 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.

AB - We theoretically investigate the specific heat at constant volume CV and strong-coupling effects in a Fermi gas with p-wave interaction. In a 40K 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 CV 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.

KW - Specific heat

KW - Ultracold Fermi gas

KW - p-Wave superfluid

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DO - 10.1007/s10909-016-1677-7

M3 - Article

AN - SCOPUS:84992724122

VL - 187

SP - 685

EP - 691

JO - Journal of Low Temperature Physics

JF - Journal of Low Temperature Physics

SN - 0022-2291

IS - 5-6

ER -

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

Abstract

Keywords

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