PIRSA:20120024

Non-local quantum computation and holography

May, A. (2020). Non-local quantum computation and holography. Perimeter Institute. https://pirsa.org/20120024

May, Alex. Non-local quantum computation and holography. Perimeter Institute, Dec. 16, 2020, https://pirsa.org/20120024 

          @misc{ pirsa_PIRSA:20120024,
            doi = {10.48660/20120024},
            url = {https://pirsa.org/20120024},
            author = {May, Alex},
            keywords = {Quantum Information},
            language = {en},
            title = {Non-local quantum computation and holography},
            publisher = {Perimeter Institute},
            year = {2020},
            month = {dec},
            note = {PIRSA:20120024 see, \url{https://pirsa.org}}
          }

Alex May Perimeter Institute for Theoretical Physics

DOI 10.48660/20120024
Collection
Talk Type Scientific Series
Subject

Abstract

Relativistic quantum tasks are quantum computations which have inputs and outputs that occur at designated spacetime locations.

Understanding which tasks are possible to complete, and what resources are required to complete them, captures spacetime-specific aspects of quantum information. In this talk we explore the connections between such tasks and quantum gravity, specifically in the context of the AdS/CFT correspondence. We find that tasks reveal a novel connection between causal features of bulk geometry and boundary entanglement.

Further, we find that AdS/CFT suggests quantum non-local computations, a specific task with relevance to position-based cryptography, can be performed with linear entanglement. This would be an exponential improvement on existing protocols.