Nonlinear Ramsey Interferometry of Fermi Superfluid Gases in a Double-Well Potential

作者：Meng Hong Juan; Gou Xue Qiang^*; Wang Wen Yuan; Yang Yang; Duan Wen Shan

来源：Communications in Theoretical Physics, 2012, 57(6): 1007-1011.

DOI：10.1088/0253-6102/57/6/12

• Fermi superfluid gases
• deep BEC regime
• Ramsey interferometry

The nonlinear Ramsey interferometry of Fermi superfluid gases in a double-well potential is investigated in this paper. We found that the frequency of the Ramsey fringes exactly reflects the strength of nonlinearity, or the scattering length of the Fermi superfluid gases. The cases of sudden limit, the adiabatic limit and the general case are studied. The analytical result is in good agreement with the numerical ones. The adiabatic condition is proposed. In general situation, the zero-frequency point emerge. Finally the possible applications of the theory are discussed.

• 出版日期2012-6
• 单位西北师范大学