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Nonlinear Rosen-Zener transition of Fermi superfluid gases

Meng Hong-Juan Yang Yang Wang Wen-Yuan Qi Peng-Tang Ma Yun-Yun Ma Ying Wang Shan-Jin Duan Wen-Shan

Nonlinear Rosen-Zener transition of Fermi superfluid gases

Meng Hong-Juan, Yang Yang, Wang Wen-Yuan, Qi Peng-Tang, Ma Yun-Yun, Ma Ying, Wang Shan-Jin, Duan Wen-Shan
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  • Received Date:  23 May 2011
  • Accepted Date:  09 July 2011
  • Published Online:  20 March 2012

Nonlinear Rosen-Zener transition of Fermi superfluid gases

    Corresponding author: Duan Wen-Shan, duanws@nwnu.edu.cn
  • 1. Key Laboratory of Atomic and Molecular Physics and Functional Materials of Gansu Province, College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China;
  • 2. School of Electronic Engineering, Dongguan University of Technology, Dongguan 523808 China
Fund Project:  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).

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.

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