69 citations · 841 across the 44 of their papers we have counts for
4 papers · 1 filter
Contextuality with vanishing coherence and maximal robustness to dephasing
Vinicius P. Rossi, David Schmid, John H. Selby +1
Generalized contextuality is a resource for a wide range of communication and information processing protocols. However, contextuality is not possible without coherence, and so can…
Time symmetry in quantum theories and beyond
John H. Selby, Maria E. Stasinou, Stefano Gogioso +1
There exists a stark tension among different formulations of quantum theory as some are inherently time-symmetric while others are time-asymmetric. This tension is crisply captured…
Simulating all multipartite non-signalling channels via quasiprobabilistic mixtures of local channels in generalised probabilistic theories
Paulo J. Cavalcanti, John H. Selby, Jamie Sikora +1
Non-signalling quantum channels -- relevant in, e.g., the study of Bell and Einstein-Podolsky-Rosen scenarios -- may be simulated via affine combinations of local operations in bip…
A linear program for testing nonclassicality and an open-source implementation
John H. Selby, Elie Wolfe, David Schmid +2
A well motivated method for demonstrating that an experiment resists any classical explanation is to show that its statistics violate generalized noncontextuality. We here formulat…