Non local weak measurements


Brodutch, A. (2014). Non local weak measurements. Perimeter Institute. https://pirsa.org/14100073


Brodutch, Aharon. Non local weak measurements. Perimeter Institute, Oct. 07, 2014, https://pirsa.org/14100073


          @misc{ pirsa_PIRSA:14100073,
            doi = {10.48660/14100073},
            url = {https://pirsa.org/14100073},
            author = {Brodutch, Aharon},
            keywords = {Quantum Foundations},
            language = {en},
            title = {Non local weak measurements},
            publisher = {Perimeter Institute},
            year = {2014},
            month = {oct},
            note = {PIRSA:14100073 see, \url{https://pirsa.org}}

Aharon Brodutch Institute for Quantum Computing (IQC)


Weak measurement is increasingly acknowledged as an important theoretical and experimental tool. Weak values- the results of weak measurements- are often used to understand seemingly paradoxical quantum behavior. Until now however, it was not known how to perform a weak non-local measurement of a general operator. Such a procedure is necessary if we are to take the associated `weak values' seriously as a physical quantity. We propose a novel scheme for performing non-local weak measurement which is based on the principle of quantum erasure. This method can be used for a large class of observables including those related to Hardy's paradox.