PIRSA:23090056

Video URL

http://pirsa.org/23090056

Single-copy activation of Bell nonlocality and entanglement certification via broadcasting of quantum states

Boghiu, E. (2023). Single-copy activation of Bell nonlocality and entanglement certification via broadcasting of quantum states. Perimeter Institute for Theoretical Physics. http://pirsa.org/23090056

Boghiu, Emanuel-Cristian. Single-copy activation of Bell nonlocality and entanglement certification via broadcasting of quantum states. Perimeter Institute for Theoretical Physics, Sep. 11, 2023, http://pirsa.org/23090056 

          @misc{ scivideos_PIRSA:23090056,
            doi = {},
            url = {http://pirsa.org/23090056},
            author = {Boghiu, Emanuel-Cristian},
            keywords = {Quantum Foundations},
            language = {en},
            title = {Single-copy activation of Bell nonlocality and entanglement certification via broadcasting of quantum states},
            publisher = {Perimeter Institute for Theoretical Physics},
            year = {2023},
            month = {sep},
            note = {PIRSA:23090056 see, \url{https://scivideos.org/PIRSA/23090056}}
          }

Emanuel-Cristian Boghiu Institute of Photonic Sciences (ICFO)

Source Repository PIRSA
Collection
Talk Type Scientific Series
Subject

Abstract

Activation of Bell nonlocality refers to the phenomenon where some entangled mixed states that admit a local hidden variable model in the standard Bell scenario nevertheless reveal their nonlocal nature in more exotic measurement scenarios. It has recently been shown that by broadcasting the subsystems of a bipartite quantum state, one can activate Bell nonlocality and significantly improve noise tolerance bounds for device-independent and semi-device-independent entanglement certification, with a single copy of the state and local measurements. In this talk I will review the state of the art on activation of nonlocality and existence of local hidden variable models, introduce the broadcasting technique and outline several interesting results and research directions.

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Zoom link  https://pitp.zoom.us/j/91214624839?pwd=dXNUOERLMldScjczemlaSUhFbFNWQT09