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17 papers · 2 filters
Existence Criterion of Genuine Tripartite Entanglement
Chang-shui Yu, He-shan Song
In this paper, an intuitive mathematical formulation is provided to generalize the residual entanglement for tripartite systems of qubits [Phys. Rev. A 61, 052306 (2000)] to the tr…
Feedback control on geometric phase in dissipative two-level systems
H. Y. Sun, P. L. Shu, C. Li +1
The effect of feedback on a two-level dissipative system is studied in this paper. The results show that it is possible to control the phase in the open system even if its state ca…
Evolution of entanglement for quantum mixed states
Chang-shui Yu, X X Yi, He-shan Song
A simple relation is introduced for concurrence to describe how much the entanglement of bipartite system is at least left if either (or both) subsystem undergoes an arbitrary phys…
Non-Markovian Effects on the Geometric Phase
X. L. Huang, X. X. Yi
The geometric phases of a two-level atom interacting with non-Markovian environments are calculated and the non-Markovian effects on the geometric phases are discussed in this pape…
Effective Hamiltonian Approach to Open Systems and Its Applications
X. L. Huang, X. X. Yi, Chunfeng Wu +3
By using the effective Hamiltonian approach, we present a self-consistent framework for the analysis of geometric phases and dynamically stable decoherence-free subspaces in open s…
Non-Markovian Quantum Jump with Generalized Lindblad Master Equation
X. L. Huang, H. Y. Sun, X. X. Yi
The Monte Carlo wave function method or the quantum trajectory/jump approach is a powerful tool to study dissipative dynamics governed by the Markovian master equation, in particul…