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Experimental demonstration of single photon nonlocality
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.ORCID iD: 0000-0002-2082-9583
2004 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 92, no 18Article in journal (Refereed) Published
Abstract [en]

In this Letter we experimentally implement a single photon Bell test based on the ideas of S. Tan et al. [Phys. Rev. Lett. 66, 252 (1991)] and L. Hardy [Phys. Rev. Lett. 73, 2279 (1994)]. A double homodyne measurement is used to measure correlations in the Fock space spanned by zero and one photons. Local oscillators used in the correlation measurement are distributed to two observers by copropagating it in an orthogonal polarization mode. This method eliminates the need for interferometrical stability in the setup, consequently making it a robust and scalable method.

Place, publisher, year, edition, pages
2004. Vol. 92, no 18
Keyword [en]
hidden-variable theories, bell inequalities, violation
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-23395DOI: 10.1103/PhysRevLett.92.180401ISI: 000221277900001Scopus ID: 2-s2.0-2942631371OAI: oai:DiVA.org:kth-23395DiVA: diva2:342093
Note
QC 20100525 QC 20111025Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Björk, Gunnar

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