By using principal minor method, which is developed from the Peres-Horodecki criterion for the separability of a quantum state, we derive the necessary and sufficient conditions for the entanglement sudden death of a two-qubit state under amplitude damping and phase damping.
|Physical Review A - Atomic, Molecular, and Optical Physics
|Published - 26 Dec 2007
Scopus Subject Areas
- Atomic and Molecular Physics, and Optics