PIRSA:15020108

Local tests of global entanglement and a counterexample to the generalized area law

Nagaj, D. (2015). Local tests of global entanglement and a counterexample to the generalized area law . Perimeter Institute. https://pirsa.org/15020108

Nagaj, Daniel. Local tests of global entanglement and a counterexample to the generalized area law . Perimeter Institute, Feb. 18, 2015, https://pirsa.org/15020108 

          @misc{ pirsa_PIRSA:15020108,
            doi = {10.48660/15020108},
            url = {https://pirsa.org/15020108},
            author = {Nagaj, Daniel},
            keywords = {Quantum Foundations, Quantum Information},
            language = {en},
            title = {Local tests of global entanglement and a counterexample to the generalized area law },
            publisher = {Perimeter Institute},
            year = {2015},
            month = {feb},
            note = {PIRSA:15020108 see, \url{https://pirsa.org}}
          }

Daniel Nagaj Slovak Academy of Sciences

Talk numberPIRSA:15020108
DOI10.48660/15020108
Collection
Talk Type Scientific Series
Subject

Abstract

We introduce a technique for applying quantum expanders in a distributed fashion, and use it to solve two basic questions: testing whether a bipartite quantum state shared by two parties is the maximally entangled state and disproving a generalized area law. In the process these two questions which appear completely unrelated turn out to be two sides of the same coin. Strikingly in both cases a constant amount of resources are used to verify a global property.