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SUMMARY:Synchronous quantum games - Adina Goldberg (University of Waterloo
 )
DTSTART:20241203T115000Z
DTEND:20241203T123000Z
UID:TALK218611@talks.cam.ac.uk
DESCRIPTION:Consider nonlocal games\, but allow for quantum questions and 
 answers. We call these objects quantum games. It turns out the typical def
 initions from the nonlocal games literature can be extended and many of th
 e typical results still hold in this quantum setting. The analogies to the
  typical setting can be seen clearly using string diagrams! This talk cont
 ains many diagrams.\nWe use string diagrams to introduce extended definiti
 ons of games\, correlations\, and synchronicity. We show that perfect corr
 elations and strategies for synchronous quantum games must be synchronous.
 \nTime permitting\, as a key example: When the graph homomorphism game is 
 extended to quantum graphs\, we get a synchronous game\, whose perfect str
 ategies are quantum graph homomorphisms!\nThe talk is based on a preprint 
 Quantum games and synchronicity. This work is inspired by Musto\, Reutter\
 , and Verdon's paper A compositional approach to quantum functions\, and r
 elies heavily on the reference Categories for Quantum Theory by Heunen and
  Vicary for string diagrams in quantum information.&nbsp\;
LOCATION:Seminar Room 1\, Newton Institute
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