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[理论室报告] Pair correlations in the normal phase of an attractive Fermi gas
时间: 2019年10月18日 10:30
地点: M830
报告人: Giancarlo Calvanese Strinati教授

Department of Physics, University of Camerino, Camerino (MC), Italy

摘要:In a recent paper [Phys. Rev. A {\bf 99}, 053617 (2019)], the total number of fermion pairs in a spin-balanced two-component Fermi gas of $^{6}$Li atoms was experimentally investigated in the normal phase above the superfluid critical temperature, in order to distinguish between the sectors of pseudogap and preformed-pair in the temperature-coupling phase diagram. Here, a theoretical account of these experimental results is presented in terms of an \emph{ab-initio} self-consistent $t$-matrix calculation, which emphasizes the role of the pair-correlation function between opposite-spin fermions at equilibrium. Excellent agreement is found between the available experimental data and the theoretical results obtained with no adjustable parameter.

联系人:方辰(82649073)


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