DP Seminar

[Luca Ferialdi]

Department of Physics - Miramare - University of Trieste

Wednesday 6 July 2011 - 3.00 pm
Room 204 (2nd floor LB)

Dr. Marco Piani
(University of Waterloo)


Title: 
Characterizing quantumness via entanglement creation

Abstract:
We devise a protocol in which general non-classical multipartite correlations produce a physically relevant effect,
leading to the creation of bipartite entanglement. In particular, we show that the relative entropy of quantumness,
which measures all non-classical correlations among subsystems of a quantum system, is equivalent to and can
be operationally interpreted as the minimum distillable entanglement generated between the system and local
ancillae in our protocol. We emphasize the key role of state mixedness in maximizing non-classicality: Mixed
entangled states can be arbitrarily more non-classical than separable and pure entangled states.

Joint work with Sevag Gharibian, Gerardo Adesso, John Calsamiglia, Pawel Horodecki, Andreas Winter

Reference: M. Piani et al., Phys. Rev. Lett. 106, 220403 (2011)