A time-asymmetric delta-kicked model for the quantum ratchet effect

Lei Chen, Chao Xiong, Jin Xiao and Hong-Chun Yuan

Physica A: Statistical Mechanics and its Applications, 2014, vol. 416, issue C, 225-230

Abstract: We investigate a time-asymmetric delta-kicked model for the quantum ratchet effect, in which a flashing potential acts on a particle at unequal time intervals. Ratchet currents emerge when quantum resonances are excited. The currents in time-asymmetric models may be stronger than those found in the previous time-symmetric model. Our work expands upon the quantum delta-kicked model and may contribute to experimental investigation of the quantum transport of cold atoms.

Keywords: Quantum ratchet effect; Time-asymmetric delta-kicked model; Quantum resonance (search for similar items in EconPapers)
Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:416:y:2014:i:c:p:225-230

DOI: 10.1016/j.physa.2014.08.071

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