656 citations · 2.6k across the 25 of their papers we have counts for
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Stability of Fock states in a two-component Bose-Einstein condensate with a regular classical counterpart
Wen-ge Wang, Jie Liu, Baowen Li
We study the stability of a two-component Bose-Einstein condensate (BEC) in the parameter regime in which its classical counterpart has regular motion. The stability is characteriz…
Entanglement-induced Decoherence and Energy Eigenstates
Wen-ge Wang, Jiangbin Gong, G. Casati +1
Using recent results in the field of quantum chaos we derive explicit expressions for the time scale of decoherence induced by the system-environment entanglement. For a generic sy…
Uniform Semiclassical Approach to Fidelity Decay: from Weak to Strong Perturbation
Wen-ge Wang, Baowen Li
We study fidelity decay by a uniform semiclassical approach, in the three perturbation regimes, namely, the perturbative regime, the Fermi-golden-rule (FGR) regime, and the Lyapuno…
Stability of Quantum Motion: Beyond Fermi-golden-rule and Lyapunov decay
Wen-ge Wang, G. Casati, Baowen Li
We study, analytically and numerically, the stability of quantum motion for a classically chaotic system. We show the existence of different regimes of fidelity decay which deviate…