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Playing nonlocal games with phases of quantum matter
Vir B. Bulchandani, Fiona J. Burnell, S. L. Sondhi
The parity game is an example of a nonlocal game: by sharing a Greenberger-Horne-Zeilinger (GHZ) state before playing this game, the players can win with a higher probability than…
On Classical and Hybrid Shadows of Quantum States
Saumya Shivam, C. W. von Keyserlingk, S. L. Sondhi
Classical shadows are a computationally efficient approach to storing quantum states on a classical computer for the purposes of estimating expectation values of local observables,…
A multi-player, multi-team nonlocal game for the toric code
Vir B. Bulchandani, Fiona J. Burnell, S. L. Sondhi
Nonlocal games yield an unusual perspective on entangled quantum states. The defining property of such games is that a set of players in joint possession of an entangled state can…