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quant-ph2023
Transitive Nonlocal Games
Prem Nigam Kar, Jitendra Prakash, David E Roberson
We study a class of nonlocal games, called transitive games, for which the set of perfect strategies forms a semigroup. We establish several interesting correspondences of bisynchr…
math.QA2023
Quantum automorphism groups of trees
Josse van Dobben de Bruyn, Prem Nigam Kar, David E. Roberson +2
We give a characterisation of quantum automorphism groups of trees. In particular, for every tree, we show how to iteratively construct its quantum automorphism group using free pr…