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Quantum blackjack: Advantages offered by quantum strategies in communication-limited games

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Author(s)
Lin, Joseph X
•
Formaggio, Joseph A
•
Harrow, Aram W
•
Natarajan, Anand V
Date Issued
2020
Journal
Physical Review A
Publisher
American Physical Society (APS)
Version
Final published version
Abstract
© 2020 American Physical Society. We examine the advantages that quantum strategies afford in communication-limited games. Inspired by the card game blackjack, we focus on cooperative, two-party sequential games in which a single classical bit of communication is allowed from the player who moves first to the player who moves second. Within this setting, we explore the usage of quantum entanglement between the players and find analytic and numerical conditions for quantum advantage over classical strategies. Using these conditions, we study a family of blackjack-type games with varying numbers of card types, and find a range of parameters where quantum advantage is achieved.
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DOI of Published Version
10.1103/PHYSREVA.102.012425
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