Specific Heat of a Unitary Fermi Gas Including Particle-Hole Fluctuation

【摘要】 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.更多还原

【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.更多还原