Quantum discord versus second-order MQ NMR coherence intensity in dimers

Details Quantum discord versus second-order MQ NMR coherence intensity in dimers Quantum discord versus second-order MQ NMR coherence intensity in dimers

2011-09-29

arxiv.org/abs/1109.6420v3

Physics Letters A V.376 (2012) 1029-1034

Physics

Quantum Physics

13 pages, 3 figures

Scientific paper

We consider the quantum discord in a two-particle spin-1/2 system (dimer) governed by the standard multiple quantum (MQ) Hamiltonian and reveal the relation between the discord and the intensity of the second-order MQ coherence. Since the coherence intensities may be measured in experiment, we obtain a method of detecting the quantum discord in experiment. Comparison of discord and concurrence is represented.

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