181 citations · 1.1k across the 37 of their papers we have counts for
Showing 2012 · quant-phShow all
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quant-ph2012★ 32 cited
Generalized rotating-wave approximation to biased qubit-oscillator systems
Yu-Yu Zhang, Qing-Hu Chen, Yang Zhao
The generalized rotating-wave approximation with counter-rotating interactions has been applied to a biased qubit-oscillator system. Analytical expressions are explicitly given for…
quant-ph2012★ 10 cited
Unified analytical treatments to qubit-oscillator systems
Shu He, Yu-Yu Zhang, Qing-Hu Chen +3
An effective scheme within two displaced bosonic operators with equal positive and negative displacements is extended to study qubit-oscillator systems analytically in an unified w…
quant-ph2012★ 47 cited
Quantum correlations in the collective spin systems
Chen Wang, Yu-Yu Zhang, Qing-Hu Chen
Quantum and classical pairwise correlations in two typical collective spin systems (i.e., the Dicke model and the Lipkin-Meshkov-Glick model) are discussed. These correlations in t…