Joint system quantum descriptions arising from local quantumness
Quantum Physics
2015-06-05 v1
Abstract
Bipartite correlations generated by non-signalling physical systems that admit a finite-dimensional local quantum description cannot exceed the quantum limits, i.e., they can always be interpreted as distant measurements of a bipartite quantum state. Here we consider the effect of dropping the assumption of finite dimensionality. Remarkably, we find that the same result holds provided that we relax the tensor structure of space-like separated measurements to mere commutativity. We argue why an extension of this result to tensor representations seems unlikely.
Cite
@article{arxiv.1205.4110,
title = {Joint system quantum descriptions arising from local quantumness},
author = {Tom Cooney and Marius Junge and Miguel Navascues and David Perez-Garcia and Ignacio Villanueva},
journal= {arXiv preprint arXiv:1205.4110},
year = {2015}
}