1109.6420 (E. I. Kuznetsova et al.)

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

E. I. Kuznetsova, A. I. Zenchuk

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.

View original: http://arxiv.org/abs/1109.6420