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Strong-coupling Properties of a $p$-wave Interacting Fermi Gas on the Viewpoint of Specific Heat at Constant Volume
- Publication Year :
- 2016
- Publisher :
- arXiv, 2016.
-
Abstract
- We theoretically investigate the specific heat $C_V$ at constant volume in the normal state of a $p$-wave interacting Fermi gas. Including fluctuations in the $p$-wave Cooper channel within the framework of the strong-coupling theory developed by Nozi\`eres and Schmitt-Rink, we clarify how $C_V$ as a function of temperature varies, as one moves from the weak-coupling regime to the strong-coupling limit. In the weak-coupling regime, $C_V$ is shown to be enhanced by $p$-wave pairing fluctuations, near the superfluid phase transition temperature $T_{\rm c}$. Similar enhancement of $C_V(T\simeq T_{\rm c})$ is also obtained in the strong-coupling regime, which, however, reflects that system is close an ideal Bose gas of $p$-wave two-body bound molecules. Using these results, we classify the normal state into (1) the normal Fermi gas regime, (2) the $p$-wave molecular Bose gas regime, and (3) the region between the two, where $p$-wave pairing fluctuations are dominant. Since the current experiments can only access the normal phase of a $p$-wave interacting Fermi gas, our results would be useful for experiments to understand strong-coupling properties of this Fermi system above $T_{\rm c}$.<br />Comment: 7 pages, 6 figures
- Subjects :
- Physics
Bose gas
Condensed matter physics
Condensed Matter - Superconductivity
General Physics and Astronomy
FOS: Physical sciences
01 natural sciences
010305 fluids & plasmas
Superfluidity
Superconductivity (cond-mat.supr-con)
Volume (thermodynamics)
Quantum Gases (cond-mat.quant-gas)
Pairing
0103 physical sciences
Ideal (ring theory)
010306 general physics
Constant (mathematics)
Fermi gas
Condensed Matter - Quantum Gases
Fermi Gamma-ray Space Telescope
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....68485b5af52b814fa8217515a221da92
- Full Text :
- https://doi.org/10.48550/arxiv.1610.08598