9 May 2014, Theoretical Computer Science Seminar, Maris Ozols

Abstract:

An important aspect that sets quantum states apart from classical probability distributions is the possibility of two amplitudes to cancel each other out. However, many quantum phenomena do not take advantage of this feature and thus have a classical analogue. Collins and Popescu (2002) showed that teleportation and various entanglement manipulation protocols belong to this class of phenomena by establishing a close analogy between entanglement and secret classical correlations. We extend their framework by introducing a classical analogue of mixed quantum states. This yields new and even more striking classical analogues of quantum phenomena, such as private bound entanglement and superactivation of quantum capacity.

This talk is based on a joint work (http://arxiv.org/abs/1305.0848) with Graeme Smith and John Smolin from IBM.

For more information, contact rdewolf at cwi.nl.