Entanglement versus mixedness for coupled qubits under a phase damping channel

Details Entanglement versus mixedness for coupled qubits under a phase damping channel Entanglement versus mixedness for coupled qubits under a phase damping channel

2005-07-21

arxiv.org/abs/quant-ph/0507212v2

Phys. Rev. A 72, 042320 (2005)

Physics

Quantum Physics

9 pages, 2 figures. Replaced with final published version

Scientific paper

10.1103/PhysRevA.72.042320

Quantification of entanglement against mixing is given for a system of
coupled qubits under a phase damping channel. A family of pure initial joint
states is defined, ranging from pure separable states to maximally entangled
state. An ordering of entanglement measures is given for well defined initial
state amount of entanglement.

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