Toroš, M. , Cromb, M., Paternostro, M. and Faccio, D. (2022) Generation of entanglement from mechanical rotation. Physical Review Letters, 129(26), 260401. (doi: 10.1103/PhysRevLett.129.260401) (PMID:36608206)
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Abstract
Many phenomena and fundamental predictions, ranging from Hawking radiation to the early evolution of the Universe rely on the interplay between quantum mechanics and gravity or more generally, quantum mechanics in curved spacetimes. However, our understanding is hindered by the lack of experiments that actually allow us to probe quantum mechanics in curved spacetime in a repeatable and accessible way. Here we propose an experimental scheme for a photon that is prepared in a path superposition state across two rotating Sagnac interferometers that have different diameters and thus represent a superposition of two different spacetimes. We predict the generation of genuine entanglement even at low rotation frequencies and show how these effects could be observed even due to the Earth’s rotation. These predictions provide an accessible platform in which to study the role of the underlying spacetime in the generation of entanglement.
| Item Type: | Articles |
|---|---|
| Additional Information: | The authors acknowledge financial support from the Leverhulme Trust (Grants No. RPG-2020-197 and No. RPG-2018-266), the European Union’s Horizon 2020 FET-Open project TEQ (766900), the Horizon Europe EICPathfinder project QuCoM (101046973), the Royal Society Wolfson Fellowship (RSWF/R3/183013), the UK EPSRC (Grants No. EP/T028424/1, No. EP/T00097X/1, No. EP/ W007444/1, No. EP/R030413/1, No. EP/M01326X/1, No. EP/R030081/1), the Department for the Economy Northern Ireland under the US-Ireland R&D Partnership Programme, and the Royal Academy of Engineering Chair in Emerging Technologies programme. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Faccio, Professor Daniele and Cromb, Mx Marion and Toros, Dr Marko |
| Authors: | Toroš, M., Cromb, M., Paternostro, M., and Faccio, D. |
| College/School: | College of Science and Engineering > School of Physics and Astronomy |
| Journal Name: | Physical Review Letters |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| ISSN (Online): | 1079-7114 |
| Published Online: | 21 December 2022 |
| Copyright Holders: | Copyright © 2022 The American Physical Society |
| First Published: | First published in Physical Review Letters 129(26): 260401 |
| Publisher Policy: | Reproduced under a Creative Commons License |
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