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Title: Entanglement versus mixedness for coupled qubits under a phase damping channel

Journal Article · · Physical Review. A
; ;  [1]
  1. Instituto de Fisica 'Gleb Wataghin', Universidade Estadual de Campinas, 13083-970, Campinas, Sao Paulo (Brazil)

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 states. An ordering of entanglement measures is given for a well-defined initial-state amount of entanglement.

OSTI ID:
20718713
Journal Information:
Physical Review. A, Vol. 72, Issue 4; Other Information: DOI: 10.1103/PhysRevA.72.042320; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
Country of Publication:
United States
Language:
English