Mechanical rotation modifies the manifestation of photon entanglement

Cromb, M., Restuccia, S. , Gibson, G. M. , Toroš, M. , Padgett, M. J. and Faccio, D. (2023) Mechanical rotation modifies the manifestation of photon entanglement. Physical Review Research, 5(2), L022005. (doi: 10.1103/PhysRevResearch.5.L022005)

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Mechanical rotation plays a central role in fundamental physics theories and has profound connections with the theory of general relativity. However, very few experiments have so far aimed to explore the interplay of mechanical rotation with entangled photon states. By adding Sagnac interferometers into the arms of a Hong-Ou-Mandel (HOM) interferometer that is placed on a mechanically rotating platform, we experimentally observe the modification of the symmetry of an entangled biphoton state due to noninertial motion. As the platform rotation speed is increased, we observe that HOM interference dips transform into HOM interference peaks. This indicates that the photons pass from perfectly indistinguishable (bosonic behavior), to perfectly distinguishable (fermionic behavior). This demonstration is of relevance to global satellite quantum communications and paves the way for further fundamental research that can test the influence of curved space on quantum entanglement.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Gibson, Dr Graham and Faccio, Professor Daniele and Restuccia, Dr Sara and Padgett, Professor Miles and Toros, Dr Marko and Cromb, Dr Marion
Authors: Cromb, M., Restuccia, S., Gibson, G. M., Toroš, M., Padgett, M. J., and Faccio, D.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physical Review Research
Publisher:American Physical Society
ISSN (Online):2643-1564
Published Online:05 April 2023
Copyright Holders:Copyright © 2023 The Authors
First Published:First published in Physical Review Research 5(2): L022005
Publisher Policy:Reproduced under a Creative Commons License
Data DOI:10.5525/gla.researchdata.1411

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
305153RAEng Chair Emerging TechnologiesDaniele FaccioRoyal Academy of Engineering (RAE)CiET1819/20P&S - Physics & Astronomy
312871Amplification of electromagnetic waves by a rotating body.Daniele FaccioEngineering and Physical Sciences Research Council (EPSRC)521563101P&S - Physics & Astronomy