7 papers
The complexity of compatible measurements
Paul Skrzypczyk, Matty J. Hoban, Ana Belén Sainz +1
Measurement incompatibility is one of the basic aspects of quantum theory. Here we study the structure of the set of compatible -- i.e. jointly measurable -- measurements. We are i…
Reference frames which separately store non-commuting conserved quantities
Sandu Popescu, Ana Belén Sainz, Anthony J. Short +1
Even in the presence of conservation laws, one can perform arbitrary transformations on a system if given access to a suitable reference frame, since conserved quantities may be ex…
Bipartite post-quantum steering in generalised scenarios
Ana Belén Sainz, Matty J. Hoban, Paul Skrzypczyk +1
The study of stronger-than-quantum effects is a fruitful line of research that provides valuable insight into quantum theory. Unfortunately, traditional bipartite steering scenario…
Quantifying Bell: the Resource Theory of Nonclassicality of Common-Cause Boxes
Elie Wolfe, David Schmid, Ana Belén Sainz +2
We take a resource-theoretic approach to the problem of quantifying nonclassicality in Bell scenarios. The resources are conceptualized as probabilistic processes from the setting…
Quantum Reference Frames and Their Applications to Thermodynamics
Sandu Popescu, Ana Belén Sainz, Anthony J. Short +1
We construct a quantum reference frame, which can be used to approximately implement arbitrary unitary transformations on a system in the presence of any number of extensive conser…
Quantum violations in the Instrumental scenario and their relations to the Bell scenario
Thomas Van Himbeeck, Jonatan Bohr Brask, Stefano Pironio +3
The causal structure of any experiment implies restrictions on the observable correlations between measurement outcomes, which are different for experiments exploiting classical, q…