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- Institute of Modern PhysicsCN16 papers
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5 papers · 1 filter
Incoherent Control of Locally Controllable Quantum Systems
Daoyi Dong, Chenbin Zhang, Herschel Rabitz +2
An incoherent control scheme for state control of locally controllable quantum systems is proposed. This scheme includes three steps: (1) amplitude amplification of the initial sta…
Fidelity susceptibility for SU(2)-invariant states
Xiaoguang Wang, Shi-Jiang Gu
We study the fidelity susceptibility of two SU(2)-invariant reduced density matrices. Due to the commuting property of these matrices, analytical results for reduced fidelity susce…
Operator fidelity susceptibility, decoherence and quantum criticality
Xiao-Ming Lu, Zhe Sun, Xiaoguang Wang +1
The extension of the notion of quantum fidelity from the state-space level to the operator one can be used to study environment-induced decoherence. state-dependent operator fideli…
Entanglement of formation from optimal decomposition
Lin Chen, Yi-Xin Chen
We present a new method of analytically deriving the entanglement of formation of the bipartite mixed state. The method realizes the optimal decomposition families of states. Our m…
Exact expression for decoherence factor in the time-dependent generalized Cini model
Jian Qi Shen, San Shui Xiao, Qiang Wu
The present letter finds the complete set of exact solutions of the time-dependent generalized Cini model by making use of the Lewis-Riesenfeld invariant theory and the invariant-r…