Entanglement, intractability and no-signaling

DOI10.1088/0031-8949/81/06/065002zbMATH Open1198.81059arXiv1005.3449OpenAlexW2082449306MaRDI QIDQ3160860

Author name not available (Why is that?)

Publication date: 11 October 2010

Published in: (Search for Journal in Brave)

Abstract: We consider the problem of deriving the no-signaling condition from the assumption that, as seen from a complexity theoretic perspective, the universe is not an exponential place. A fact that disallows such a derivation is the existence of {em polynomial superluminal} gates, hypothetical primitive operations that enable superluminal signaling but not the efficient solution of intractable problems. It therefore follows, if this assumption is a basic principle of physics, either that it must be supplemented with additional assumptions to prohibit such gates, or, improbably, that no-signaling is not a universal condition. Yet, a gate of this kind is possibly implicit, though not recognized as such, in a decade-old quantum optical experiment involving position-momentum entangled photons. Here we describe a feasible modified version of the experiment that appears to explicitly demonstrate the action of this gate. Some obvious counter-claims are shown to be invalid. We believe that the unexpected possibility of polynomial superluminal operations arises because some practically measured quantum optical quantities are not describable as standard quantum mechanical observables.

Full work available at URL: https://arxiv.org/abs/1005.3449

Mathematics Subject Classification ID

No records found.

This page was built for publication: Entanglement, intractability and no-signaling

Report a bug (only for logged in users!)Click here to report a bug for this page (MaRDI item Q3160860)