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The cross-braiding between quantum information and condensed
matter physics has recently stimulated excitation among researchers. The
tools developed in quantum information have been put to use in analyzing
collective phenomena in many-body systems. Many-body systems have been
studied by observing, for example, their response to external
perturbations, various order parameters, and excitation spectra. In this
talk, I will characterize the behavior of several quantum correlation
measures, including bipartite and multipartite ones, in spin models like
Heisenberg spin system, XY-spin chain, etc. Also, I deal with the
characterization of multipartite quantum correlation in spin models which
can be both clean and disordered ones. I will connect the multipartite
quantum correlations and the capacity of sending classical information
through spin models as quantum channels. |