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Completely mixed state is a critical point for three-qubit entanglement
Completely mixed state critical point three-qubit entanglement
2010/11/5
Pure three-qubit states have five algebraically independent and one algebraically dependent polynomial invariants under local unitary transformations and an arbitrary entanglement measure is a functi...
Distillation of mixed-state continuous-variable entanglement by photon subtraction
Distillation mixed-state continuous-variable entanglement photon subtraction
2010/10/21
We present a detailed theoretical analysis for the distillation of one copy of a mixed two-mode
continuous-variable entangled state using beamsplitters and coherent photon-detection techniques,includ...