Tests of bell inequality with arbitrarily low photodetection efficiency and homodyne measurements
2012 (English)In: Physical Review A. Atomic, Molecular, and Optical Physics, ISSN 1050-2947, E-ISSN 1094-1622, Vol. 86, no 3, 030101- p.Article in journal (Refereed) Published
We show that hybrid local measurements combining homodyne measurements and photodetection provide violations of a Bell inequality with arbitrarily low photodetection efficiency. This is shown in two different scenarios: when one part receives an atom entangled to the field mode to be measured by the other part and when both parts make similar photonic measurements. Our findings promote the hybrid measurement scenario as a candidate for loophole-free Bell tests beyond previous expectations.
Place, publisher, year, edition, pages
2012. Vol. 86, no 3, 030101- p.
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:su:diva-81839DOI: 10.1103/PhysRevA.86.030101ISI: 000308286600001OAI: oai:DiVA.org:su-81839DiVA: diva2:564479