PIRSA:11050031 Conference Quantum Foundations

DOI10.48660/11050031

Conference/School: Conceptual Foundations and Foils for Quantum Information Processing - 2011

Scarani, V. (2011). 3 >> 2. Perimeter Institute. https://pirsa.org/11050031

Scarani, Valerio. 3 >> 2. Perimeter Institute, May. 11, 2011, https://pirsa.org/11050031 

@misc{ pirsa_PIRSA:11050031,
  doi = {10.48660/11050031},
  url = {https://pirsa.org/11050031},
  author = {Scarani, Valerio},
  keywords = {Quantum Foundations},
  language = {en},
  title = {3 \>\> 2},
  publisher = {Perimeter Institute},
  year = {2011},
  month = {may},
  note = {PIRSA:11050031 see, \url{https://pirsa.org}}
}

Abstract

Three-partite quantum systems exhibit interesting features that are absent in bipartite ones. Several instances are classics by now: the GHZ argument, the W state, the UPB bound entangled states, Svetlichny inequalities... In this talk, I shall discuss some on-going research projects that we are pursuing in my group (in collaboration, or in friendly competition, with other groups) and that involve three-partite entanglement or non-locality: * Activation of non-locality in networks. * Device-independent assessment of the entangling power of a measurement. * Can one falsify all models of hidden communication with finite speed? * Information causality in the three-partite scenario. I shall conclude by a blind excursion into uncertainty relations and cryptography, which also shows 3>>2 albeit with a different meaning.

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