On tests of the quantum nature of gravitational interactions in presence of non-linear corrections to quantum mechanics

When two particles interact primarily through gravity and follow the laws of quantum mechanics, the generation of entanglement is considered a hallmark of the quantum nature of the gravitational interaction. However, we demonstrate that entanglement dynamics can also occur in the presence of a weak...

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Main Authors: Giovanni Spaventa, Ludovico Lami, Martin B. Plenio
Format: Article
Language:English
Published: Verein zur Förderung des Open Access Publizierens in den Quantenwissenschaften 2023-10-01
Series:Quantum
Online Access:https://quantum-journal.org/papers/q-2023-10-25-1157/pdf/
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author Giovanni Spaventa
Ludovico Lami
Martin B. Plenio
author_facet Giovanni Spaventa
Ludovico Lami
Martin B. Plenio
author_sort Giovanni Spaventa
collection DOAJ
description When two particles interact primarily through gravity and follow the laws of quantum mechanics, the generation of entanglement is considered a hallmark of the quantum nature of the gravitational interaction. However, we demonstrate that entanglement dynamics can also occur in the presence of a weak quantum interaction and non-linear corrections to local quantum mechanics, even if the gravitational interaction is classical or absent at short distances. This highlights the importance of going beyond entanglement detection to conclusively test the quantum character of gravity, and it requires a thorough examination of the strength of other quantum forces and potential non-linear corrections to quantum mechanics in the realm of large masses.
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spelling doaj.art-ea3e428f839345119b5139db7e4188492023-11-02T12:12:03ZengVerein zur Förderung des Open Access Publizierens in den QuantenwissenschaftenQuantum2521-327X2023-10-017115710.22331/q-2023-10-25-115710.22331/q-2023-10-25-1157On tests of the quantum nature of gravitational interactions in presence of non-linear corrections to quantum mechanicsGiovanni SpaventaLudovico LamiMartin B. PlenioWhen two particles interact primarily through gravity and follow the laws of quantum mechanics, the generation of entanglement is considered a hallmark of the quantum nature of the gravitational interaction. However, we demonstrate that entanglement dynamics can also occur in the presence of a weak quantum interaction and non-linear corrections to local quantum mechanics, even if the gravitational interaction is classical or absent at short distances. This highlights the importance of going beyond entanglement detection to conclusively test the quantum character of gravity, and it requires a thorough examination of the strength of other quantum forces and potential non-linear corrections to quantum mechanics in the realm of large masses.https://quantum-journal.org/papers/q-2023-10-25-1157/pdf/
spellingShingle Giovanni Spaventa
Ludovico Lami
Martin B. Plenio
On tests of the quantum nature of gravitational interactions in presence of non-linear corrections to quantum mechanics
Quantum
title On tests of the quantum nature of gravitational interactions in presence of non-linear corrections to quantum mechanics
title_full On tests of the quantum nature of gravitational interactions in presence of non-linear corrections to quantum mechanics
title_fullStr On tests of the quantum nature of gravitational interactions in presence of non-linear corrections to quantum mechanics
title_full_unstemmed On tests of the quantum nature of gravitational interactions in presence of non-linear corrections to quantum mechanics
title_short On tests of the quantum nature of gravitational interactions in presence of non-linear corrections to quantum mechanics
title_sort on tests of the quantum nature of gravitational interactions in presence of non linear corrections to quantum mechanics
url https://quantum-journal.org/papers/q-2023-10-25-1157/pdf/
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