Please use this identifier to cite or link to this item: https://doi.org/4/043027
Title: Reference frames for Bell inequality violation in the presence of superselection rules
Authors: Paterek, T. 
Kurzyński, P. 
Oi, D.K.L.
Kaszlikowski, D. 
Issue Date: Apr-2011
Source: Paterek, T.,Kurzyński, P.,Oi, D.K.L.,Kaszlikowski, D. (2011-04). Reference frames for Bell inequality violation in the presence of superselection rules. New Journal of Physics 13 : -. ScholarBank@NUS Repository. https://doi.org/4/043027
Abstract: Superselection rules (SSRs) constrain the allowed states and operations in quantum theory. They limit preparations and measurements and hence impact our ability to observe non-locality, in particular the violation of Bell inequalities. We show that a reference frame compatible with a particle number SSR does not allow observers to violate a Bell inequality if and only if it is prepared using only local operations and classical communication. In particular, jointly prepared separable reference frames are sufficient for obtaining violations of a Bell inequality. We study the size and non-local properties of such reference frames using superselection-induced variance. These results suggest the need for experimental Bell tests in the presence of superselection. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.
Source Title: New Journal of Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/53131
ISSN: 13672630
DOI: 4/043027
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