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Abstract

By considering the contribution of the higher order term representing the lowest approximation of beyond mean field correction and taking Roser-Zener tunneling as the underling process, we study the nonlinear Rosen-Zener transition of Fermi superfluid gas in a two-level system. We find that the nonlinearity can affect the quantun trasition in the fast scan limit and the adiabatic limit. We also derive the analytical expression for the of rectangular oscillation period dependent on nonlinear parameter. This provides a theoretical basis for a deeper understanding of the basis properties of Fermi gases.

Keywords:

Fermi superfluid gases/
Rosen-Zener transition

Authors and contacts

Corresponding author:Duan Wen-Shan,duanws@nwnu.edu.cn

Funds:Project supported by the National Natural Science Foundation of China (Grant Nos. 10725521, 91021021, 10875098), the National Basic Research Program of China (Grant Nos. 2007CB814800, 2011CB921503), and the Natural Science Foundation of Northwest Normal University, China (Grant No. NWNU-KJCXGC-03-48).

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Cited By

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Vol. 61, Issue 6 - 2012-03-20

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