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quant-ph2012★ 29 cited
Evolution of Quantum Discord and its Stability in Two-Qubit NMR Systems
Hemant Katiyar, Soumya Singha Roy, T. S. Mahesh +1
We investigate evolution of quantum correlations in ensembles of two-qubit nuclear spin systems via nuclear magnetic resonance techniques. We use discord as a measure of quantum co…
quant-ph2010
Initialization of NMR Quantum Registers using Long-Lived Singlet States
Soumya Singha Roy, T. S. Mahesh
An ensemble of nuclear spin-pairs under certain conditions is known to exhibit singlet state life-times much longer than other non-equilibrium states. This property of singlet stat…