Authors: YuLong Hou Qing Wang ZhengWen Long Jian Jing
Publish Date: 2014/09/30
Volume: 54, Issue: 5, Pages: 1506-1514
Abstract
We propose an alternative map from the the 2dimensional charged Dirac oscillator in the background of a uniform perpendicular magnetic field onto a quantum optics model which contains both JaynesCummings JC and AntiJaynesCummings AJC interactions Different from previous work we only introduce one kind of phonons and realize a symmetrical competition which is controlled by the magnetic field Furthermore we find that this model behaves as a quantum phase transition when a dimensionless parameter crosses its critical value Several characteristics of quantum phase transition are exhibited explicitly
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