Landau-Zener-Stuckelberg interference in a multi-anticrossing system
arXiv:1101.5852 · doi:10.1088/1674-1056/20/8/088501
Abstract
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.
6 pages, 5 figures
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- Low-frequency spectroscopy for quantum multi-level systems
- Three-Level Landau-Zener Dynamics
- A quantum interference capacitor based on double-passage Landau-Zener-Stückelberg-Majorana interferometry
- Interferometry of multi-level systems: rate-equation approach for a charge qudit
- Rate-equation approach for multi-level quantum systems