On the Testability of the Equivalence Principle as a Gauge Principle Detecting the Gravitational t3 Phase

There have been various claims that the Equivalence Principle, as originally formulated by Einstein, presents several difficulties when extended to the quantum domain, even in the regime of weak gravity. Here we point out that by following the same approach as used for other classical principles, e....

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Main Authors: Chiara Marletto, Vlatko Vedral
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-05-01
Series:Frontiers in Physics
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fphy.2020.00176/full
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author Chiara Marletto
Chiara Marletto
Chiara Marletto
Vlatko Vedral
Vlatko Vedral
Vlatko Vedral
author_facet Chiara Marletto
Chiara Marletto
Chiara Marletto
Vlatko Vedral
Vlatko Vedral
Vlatko Vedral
author_sort Chiara Marletto
collection DOAJ
description There have been various claims that the Equivalence Principle, as originally formulated by Einstein, presents several difficulties when extended to the quantum domain, even in the regime of weak gravity. Here we point out that by following the same approach as used for other classical principles, e.g., the principle of conservation of energy, one can, for weak fields, obtain a straightforward quantum formulation of the principle. We draw attention to a recently performed test that confirms the Equivalence Principle in this form and discuss its implications.
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spelling doaj.art-f9d65cd3756c4f0f87969017054172f52022-12-22T00:39:59ZengFrontiers Media S.A.Frontiers in Physics2296-424X2020-05-01810.3389/fphy.2020.00176529842On the Testability of the Equivalence Principle as a Gauge Principle Detecting the Gravitational t3 PhaseChiara Marletto0Chiara Marletto1Chiara Marletto2Vlatko Vedral3Vlatko Vedral4Vlatko Vedral5Clarendon Laboratory, University of Oxford, Oxford, United KingdomCentre for Quantum Technologies, National University of Singapore, Singapore, SingaporeDepartment of Physics, National University of Singapore, Singapore, SingaporeClarendon Laboratory, University of Oxford, Oxford, United KingdomCentre for Quantum Technologies, National University of Singapore, Singapore, SingaporeDepartment of Physics, National University of Singapore, Singapore, SingaporeThere have been various claims that the Equivalence Principle, as originally formulated by Einstein, presents several difficulties when extended to the quantum domain, even in the regime of weak gravity. Here we point out that by following the same approach as used for other classical principles, e.g., the principle of conservation of energy, one can, for weak fields, obtain a straightforward quantum formulation of the principle. We draw attention to a recently performed test that confirms the Equivalence Principle in this form and discuss its implications.https://www.frontiersin.org/article/10.3389/fphy.2020.00176/fullquantum gravityquantum phase estimationequivalence principleinterferometryquantum information03.67.Mn
spellingShingle Chiara Marletto
Chiara Marletto
Chiara Marletto
Vlatko Vedral
Vlatko Vedral
Vlatko Vedral
On the Testability of the Equivalence Principle as a Gauge Principle Detecting the Gravitational t3 Phase
Frontiers in Physics
quantum gravity
quantum phase estimation
equivalence principle
interferometry
quantum information
03.67.Mn
title On the Testability of the Equivalence Principle as a Gauge Principle Detecting the Gravitational t3 Phase
title_full On the Testability of the Equivalence Principle as a Gauge Principle Detecting the Gravitational t3 Phase
title_fullStr On the Testability of the Equivalence Principle as a Gauge Principle Detecting the Gravitational t3 Phase
title_full_unstemmed On the Testability of the Equivalence Principle as a Gauge Principle Detecting the Gravitational t3 Phase
title_short On the Testability of the Equivalence Principle as a Gauge Principle Detecting the Gravitational t3 Phase
title_sort on the testability of the equivalence principle as a gauge principle detecting the gravitational t3 phase
topic quantum gravity
quantum phase estimation
equivalence principle
interferometry
quantum information
03.67.Mn
url https://www.frontiersin.org/article/10.3389/fphy.2020.00176/full
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