6 citations · 8 across the 4 of their papers we have counts for
6 papers · 1 filter
Ubiquity of counterexamples to the Smith-Ward problem
Samuel J. Harris
The Smith-Ward problem about matrix ranges, posed in the 1980s, was recently resolved in the negative by Marcel Scherer (arXiv:2607.04274) by obtaining a three-dimensional operator…
Synchronicity for quantum non-local games
Michael Brannan, Samuel J. Harris, Ivan G. Todorov +1
We introduce concurrent quantum non-local games, quantum output mirror games and concurrent classical-to-quantum non-local games, as quantum versions of synchronous non-local games…
Bipartite matrix-valued tensor product correlations that are not finitely representable
Samuel J. Harris
We consider the matrix-valued generalizations of bipartite tensor product quantum correlations and bipartite infinite-dimensional tensor product quantum correlations, respectively.…
Crossed products of operator systems
Samuel J. Harris, Se-Jin Kim
In this paper we introduce the crossed product construction for a discrete group action on an operator system. In analogy to the work of E. Katsoulis and C. Ramsey, we describe thr…
Quantum Teleportation and Super-dense Coding in Operator Algebras
Li Gao, Samuel J. Harris, Marius Junge
Let be the unital -algebra generated by the elements , satisfying the relations that is a unitary operator, and let…
Connes' Embedding Problem and Winning Strategies for Quantum XOR Games
Samuel J. Harris
We consider quantum XOR games, defined in [11], from the perspective of unitary correlations defined in [7]. We show that Connes' embedding problem has a positive answer if and onl…