Classicality from zero discord for continuous-variables bipartite systems
arXiv:1201.4975
Abstract
Quantum information resources quantified by non-zero discord are ubiquitous for the continuous-variables bipartite systems. Complementary to this, we formally construct a model characterized by zero two-way discord for arbitrarily long time interval. The model is classical in the sense it does not support quantum information processing. We point out some interesting physical features of the model.
This paper has been withdrawn by the author due to being encompassed by some other posts, e.g. arXiv:1204.2789 [quant-ph]