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Article: On the possibility of laboratory evidence for quantum superposition of geometries
Title | On the possibility of laboratory evidence for quantum superposition of geometries |
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Authors | |
Issue Date | 2019 |
Citation | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2019, v. 792, p. 64-68 How to Cite? |
Abstract | © 2019 The Author(s) We analyse the recent proposal of measuring a quantum gravity phenomenon in the lab by entangling two mesoscopic particles gravitationally. We give a generally covariant description of this phenomenon, where the relevant effect turns out to be a quantum superposition of proper times. We point out that if General Relativity is assumed to hold for masses at this scale, measurement of this effect would count as evidence for quantum superposition of spacetime geometries. This interpretation addresses objections appeared in the literature. We observe that the effect sheds light on the Planck mass, and argue that it is very plausibly a real effect. |
Persistent Identifier | http://hdl.handle.net/10722/285831 |
ISSN | 2023 Impact Factor: 4.3 2023 SCImago Journal Rankings: 1.593 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Christodoulou, Marios | - |
dc.contributor.author | Rovelli, Carlo | - |
dc.date.accessioned | 2020-08-18T04:56:46Z | - |
dc.date.available | 2020-08-18T04:56:46Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 2019, v. 792, p. 64-68 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | http://hdl.handle.net/10722/285831 | - |
dc.description.abstract | © 2019 The Author(s) We analyse the recent proposal of measuring a quantum gravity phenomenon in the lab by entangling two mesoscopic particles gravitationally. We give a generally covariant description of this phenomenon, where the relevant effect turns out to be a quantum superposition of proper times. We point out that if General Relativity is assumed to hold for masses at this scale, measurement of this effect would count as evidence for quantum superposition of spacetime geometries. This interpretation addresses objections appeared in the literature. We observe that the effect sheds light on the Planck mass, and argue that it is very plausibly a real effect. | - |
dc.language | eng | - |
dc.relation.ispartof | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.title | On the possibility of laboratory evidence for quantum superposition of geometries | - |
dc.type | Article | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.1016/j.physletb.2019.03.015 | - |
dc.identifier.scopus | eid_2-s2.0-85063237545 | - |
dc.identifier.volume | 792 | - |
dc.identifier.spage | 64 | - |
dc.identifier.epage | 68 | - |
dc.identifier.isi | WOS:000466802100012 | - |
dc.identifier.issnl | 0370-2693 | - |