PIRSA: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. https://pirsa.org/23090056

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

          @misc{ pirsa_PIRSA:23090056,
            doi = {10.48660/23090056},
            url = {https://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},
            year = {2023},
            month = {sep},
            note = {PIRSA:23090056 see, \url{https://pirsa.org}}
          }

Emanuel-Cristian Boghiu

Institute of Photonic Sciences (ICFO)

Talk number
PIRSA:23090056
Collection
Talk Type
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