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Article overview
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Role of mixedness in the evolution of classical and quantum correlations under Markovian decoherence | | Prasenjit Deb
; Manik Banik
; | | Date: |
12 Nov 2014 | | Abstract: | Quantum correlation lies at the very heart of almost all the non-classical
phenomena exhibited by quantum systems composed of more than one subsystem. In
the recent days it has been pointed out that there exists quantum correlation,
namely discord which is more general than entanglement. Some authors have
investigated that for certain initial states the quantum correlations as well
as classical correlation exhibit sudden change under simple Markovian noise. We
show that, this dy- namical behavior of the both types of correlations can be
explained using the idea of complementary correlations introduced in
[arXiv:1408.6851]. We also show that though certain class of mixed en- tangled
states can resist the monotonic decay of quantum correlations,it is not true
for all mixed states. Moreover, pure entangled states of two qubits will never
exhibit such sudden change. | | Source: | arXiv, 1411.3160 | | Services: | Forum | Review | PDF | Favorites | |
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