Landau-Zener-Stuckelberg interference in a multi-anticrossing system

Details Landau-Zener-Stuckelberg interference in a multi-anticrossing system Landau-Zener-Stuckelberg interference in a multi-anticrossing system

2011-01-31

arxiv.org/abs/1101.5852v1

Physics

Quantum Physics

6 pages, 5 figures

Scientific paper

We propose a universal analytical method to study the dynamics of a multi-anticrossing system subject to driving by one single large-amplitude triangle pulse, within its time scales smaller than the dephasing time. Our approach can explain the main features of the Landau-Zener-Stuckelberg interference patterns recently observed in a tripartite system [Nature Communications 1:51 (2010)]. In particular, we focus on the effects of the size of anticrossings on interference and compare the calculated interference patterns with numerical simulations. In addition, Fourier transform of the patterns can extract information on the energy level spectrum.

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