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Nonlinear Landau-Zener tunneling

2000; American Physical Society; Volume: 61; Issue: 2 Linguagem: Inglês

10.1103/physreva.61.023402

1538-4446

Biao Wu, Qian Niu,

Strong Light-Matter Interactions

A self-interacting two-level system depending on an external parameter is investigated. The most striking feature exhibited in this system is the presence of a nonzero tunneling probability in the adiabatic limit for large enough interaction strength. Possible experimental observation of this breakdown of adiabaticity using a Bose-Einstein condensate in an optical potential is suggested.