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: | , |
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| Format: | Journal article |
| Jezik: | English |
| Izdano: |
Springer Verlag
2014
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