A survey on locking of bipartite correlations
Debbie Leung · Journal of Physics Conference Series · 2009
Unlocking of a correlation refers to the unexpected phenomenon that a small amount of communication increases that correlation (as a function of the state of the distributed system) by a disproportionate amount. Locking refers to the suppression of the correlation prior to the communication. The notion was subsequently extended to abrupt changes in a correlation due to the manipulation (in particular, the addition or removal) of a small subsystem. In this proceeding, we review the basic ideas and summarize the results known so far.