Incompatible local hidden-variable models of quantum correlations

We show a quantum state with explicit local hidden-variable models for correlations between any fixed number of subsystems which cannot be extended to a model simultaneously describing correlations between different numbers of subsystems. The explicit models we discuss may involve several settings p...

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Bibliographic Details
Main Authors: Laskowski, Wiesław, Markiewicz, Marcin, Paterek, Tomasz, Wieśniak, Marcin
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2013
Subjects:
Online Access:https://hdl.handle.net/10356/100913
http://hdl.handle.net/10220/9233
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Institution: Nanyang Technological University
Language: English
Description
Summary:We show a quantum state with explicit local hidden-variable models for correlations between any fixed number of subsystems which cannot be extended to a model simultaneously describing correlations between different numbers of subsystems. The explicit models we discuss may involve several settings per observer and the way to disqualify them involves only two settings per party.