Quantum discord in quantum information theory - From strong subadditivity to the mother protocol
Positivity of quantum discord is shown to be equivalent to the strong sub additivity of the von Neumann entropy. This leads to a connection between the mother protocol of quantum information theory [17] and quantum discord. We exploit this to show that discord is a measure coherence in the performan...
| Main Authors: | , |
|---|---|
| 格式: | Journal article |
| 语言: | English |
| 出版: |
Springer Verlag
2014
|