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quant-ph2010★ 85 cited
Tight lower bound to the geometric measure of quantum discord
Ali Saif M. Hassan, Behzad Lari, Pramod S. Joag
Dakic, Vedral and Brukner [Physical Review Letters \tf{105},190502 (2010)] gave a geometric measure of quantum discord in a bipartite quantum state as the distance of the state fro…
quant-ph2010★ 34 cited
Thermal quantum and classical correlations in two qubit XX model in a nonuniform external magnetic field
Ali Saif M. Hassan, Behzad Lari, Pramod S. Joag
We investigate how thermal quantum discord (QD) and classical correlations (CC) of a two-qubit one-dimensional XX Heisenberg chain in thermal equilibrium depend on the temperature…