TY - JOUR
T1 - Dip-hump temperature dependence of specific heat and effects of pairing fluctuations in the weak-coupling side of a P-wave interacting fermi gas
AU - Inotani, Daisuke
AU - Van Wyk, Pieter
AU - Ohashi, Yoji
N1 - Funding Information:
This work was supported by KiPAS project in Keio University, as well as Grants-in-Aid for Scientific Research from MEXT and JSPS of Japan (Nos. JP16K17773, JP15H00840, JP15K00178, and JP16K05503).
Publisher Copyright:
©2016 The Physical Society of Japan.
PY - 2016/12/15
Y1 - 2016/12/15
N2 - We investigate the specific heat CV at constant volume in the normal state of a p-wave interacting Fermi gas. Including p-wave pairing fluctuations within the strong-coupling theory developed by Nozières and Schmitt-Rink, we show that, in the weak-coupling side, CV exhibits a dip-hump behavior as a function of the temperature. While the dip is associated with the pseudogap phenomenon near Tc, the hump structure is found to come from the suppression of Fermi quasiparticle scattering into a p-wave molecular state in the Fermi degenerate regime. Since the latter phenomenon does not occur in the ordinary s-wave interacting Fermi gas, it may be viewed as a characteristic phenomenon associated with a p-wave pairing interaction.
AB - We investigate the specific heat CV at constant volume in the normal state of a p-wave interacting Fermi gas. Including p-wave pairing fluctuations within the strong-coupling theory developed by Nozières and Schmitt-Rink, we show that, in the weak-coupling side, CV exhibits a dip-hump behavior as a function of the temperature. While the dip is associated with the pseudogap phenomenon near Tc, the hump structure is found to come from the suppression of Fermi quasiparticle scattering into a p-wave molecular state in the Fermi degenerate regime. Since the latter phenomenon does not occur in the ordinary s-wave interacting Fermi gas, it may be viewed as a characteristic phenomenon associated with a p-wave pairing interaction.
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U2 - 10.7566/JPSJ.85.123301
DO - 10.7566/JPSJ.85.123301
M3 - Article
AN - SCOPUS:84999648396
SN - 0031-9015
VL - 85
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 12
M1 - 123301
ER -