1112.1856 (R. Prabhu et al.)

Dual quantum-correlation paradigms exhibit opposite
statistical-mechanical properties    [PDF]

R. Prabhu, Aditi Sen De, Ujjwal Sen

We report opposite statistical mechanical behaviors of the two major paradigms in which quantum correlation measures are defined, viz., the entanglement-separability paradigm and the information-theoretic one. We show this by considering the ergodic properties of such quantum correlation measures in transverse quantum XY spin-1/2 systems in low dimensions. While entanglement measures are ergodic in such models, the quantum correlation measures defined from an information-theoretic perspective can be nonergodic.

View original: http://arxiv.org/abs/1112.1856