Specific Heat of a Unitary Fermi Gas Including Particle-Hole Fluctuation
Xiao-Xia Ruan1**, Hao Gong2, Yuan-Mei Shi 3,4, Hong-Shi Zong4,5,6**
1Faculty of Science, Jiangsu University, Zhenjiang 212013 2Department of Mathematics and Physics, Bengbu College, Bengbu 233030 3Department of Physics and Electronic Engineering, Nanjing Xiaozhuang University, Nanjing 211171 4Department of Physics, Nanjing University, Nanjing 210093 5State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190 6Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210093
Abstract：We investigate the particle-hole fluctuation correction to the specific heat of an ultracold Fermi gas at unitarity within the framework of the non-self-consistent T-matrix approximation in the normal phase. We find good agreement between our theoretical predictions and the experimental data measured by the MIT group, apart from discrepancies near the transition temperature. At high temperature, our calculated specific heat has the tendency to approach the specific heat of the Boltzmann gas.
2016, Vol. 33 
