Testing Bell Inequalities at the LHC with Top-Quark Pairs

Correlations between the spins of top-quark pairs produced at a collider can be used to probe quantum entanglement at energies never explored so far. We show how the measurement of a single observable can provide a test of the violation of a Bell inequality at the 98% C.L. with the statistical uncer...

Full description

Saved in:

Bibliographic Details
Published in:	Physical review letters Vol. 127; no. 16; p. 161801
Main Authors:	Fabbrichesi, M, Floreanini, R, Panizzo, G
Format:	Journal Article
Language:	English
Published:	College Park American Physical Society 15-10-2021
Subjects:	Acceptance Bell's inequality Large Hadron Collider Luminosity Quantum entanglement Quarks
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Correlations between the spins of top-quark pairs produced at a collider can be used to probe quantum entanglement at energies never explored so far. We show how the measurement of a single observable can provide a test of the violation of a Bell inequality at the 98% C.L. with the statistical uncertainty of the data already collected at the Large Hadron Collider, and at the 99.99% C.L. with the higher luminosity of the next run. Detector acceptance, efficiency, and migration effects are taken into account. The test relies on the spin correlations alone and does not require the determination of probabilities-in contrast to all other tests of Bell inequalities.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0031-9007 1079-7114
DOI:	10.1103/PhysRevLett.127.161801