164 citations · 1.1k across the 62 of their papers we have counts for
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quant-ph2000★ 13 cited
Factoring the unitary evolution operator and quantifying entanglement
X. X. Yi, C. P. Sun
The unitary evolution can be represented by a finite product of exponential operators. It leads to a perturbative expression of the density operator of a close system. Based on the…
quant-ph2000
Finite temperature excitations of an inhomogneous trapped Bose gas with Feshbach resonances
X. X. Yi, D. L. Zhou, C. P. Sun +1
We derive and discuss the temperature dependance of the condensate and noncondensate density profile of a Bose-Einstein condensate gas with Feshbach resonance in a parabolic trap.…
quant-ph2000★ 2 cited
Quantum Decoherence from Adiabatic Entanglement
C. P. Sun, D. L. Zhou, S. Yu +1
In order to understand quantum decoherence of a quantum system due to its interaction with a large system behaving classically, we introduce the concept of adiabatic quantum entang…