Published February 2010 | Version v1
Journal article Metadata-only

Compatibility and noncontextuality for sequential measurements

Creators

  • 1. Institut fuer Theoretische Physik, Universitaet Innsbruck, Technikerstrasse 25, A-6020 Innsbruck (Austria)
  • 2. Institut fuer Quantenoptik und Quanteninformation, Oesterreichische Akademie der Wissenschaften, Technikerstrasse 21A, A-6020 Innsbruck (Austria)
  • 3. Departamento de Fisica Aplicada II, Universidad de Sevilla, E-41012 Sevilla (Spain)
  • 4. Institutionen foer Systemteknik och Matematiska Institutionen, Linkoepings Universitet, SE-581 83 Linkoeping (Sweden)
  • 5. Institut fuer Experimentalphysik, Universitaet Innsbruck, Technikerstrasse 25, A-6020 Innsbruck (Austria)

Description

A basic assumption behind the inequalities used for testing noncontextual hidden variable models is that the observables measured on the same individual system are perfectly compatible. However, compatibility is not perfect in actual experiments using sequential measurements. We discuss the resulting 'compatibility loophole' and present several methods to rule out certain hidden variable models that obey a kind of extended noncontextuality. Finally, we present a detailed analysis of experimental imperfections in a recent trapped-ion experiment and apply our analysis to that case.

Additional details

Identifiers

DOI
10.1103/PhysRevA.81.022121;
arXiv
arXiv:0912.4846v2;

Publishing Information

Journal Title
Physical Review. A
Journal Volume
81
Journal Issue
2
Journal Page Range
p. 022121-022121.13
ISSN
1050-2947
CODEN
PLRAAN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42005637
Subject category
S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
COMPATIBILITY; DEFECTS; HIDDEN VARIABLES; IONS; TESTING; TRAPPING
Descriptors DEC
CHARGED PARTICLES

Optional Information

Notes
(c) 2010 The American Physical Society