03.70.+c Entanglement versus correlation

Quantifying quantum steering

Date: 
2013-11-28 - 2013-12-05
Author(s): 

Paul Skrzypczyk, Miguel Navascues, Daniel Cavalcanti

Reference: 

arXiv:1311.4590 [quant-ph]

Quantum steering is a form of bipartite quantum correlations that is intermediate between entanglement and Bell nonlocality. It allows for entanglement certification when the measurements performed by one of the parties are not characterised (or untrusted) and has applications in quantum key distribution. Despite its foundational and applied importance, quantum steering lacks a quantitative assessment.

Fully nonlocal quantum correlations

Date: 
2012-03-05
Author(s): 

Leandro Aolita, Rodrigo Gallego, Antonio Acín, Andrea Chiuri, Giuseppe Vallone, Paolo Mataloni, Adán Cabello

Reference: 

Phys. Rev. A 85, 032107 (2012)

Quantum mechanics is a nonlocal theory, but not as nonlocal as the no-signalling principle allows. However, there exist quantum correlations that exhibit maximal nonlocality: they are as nonlocal as any nonsignalling correlation and thus have a local content, quantified by the fraction pL of events admitting a local description, equal to zero.

Syndicate content