https://doi.org/10.1140/epjp/s13360-023-03766-z
Regular Article
Generation of entanglement between two laser pulses through gravitational interaction
1
School of Geophysics and Geomatics, China University of Geosciences, 430074, Wuhan, China
2
School of Mathematics and Physics, China University of Geosciences, 430074, Wuhan, China
Received:
9
June
2021
Accepted:
1
February
2023
Published online:
9
February
2023
We investigate entanglement generation between two pulses through the gravitational interaction in the framework of linearized quantum gravity. Different from the earlier suggestions that two massive particles can be entangled through the gravitational field produced by the particles themselves, we use the massless particles (a laser pulse) to generate the gravitational field. In our proposal, the propagating retarded effect of the gravitational perturbation generated by the laser pulses can be incorporated into the interaction, which is significant for supporting the assumption of local interaction. It is found that the locally linearized quantum gravitational interaction can indeed lead to the generation of entanglement between two pulses, and the result is dependent on the propagating time of the gravitational perturbation. We also provide a measurement suggestion using a Holometer-like interferometers structure to present this result of gravitation-induced entanglement, which could show that the gravitational mediator is quantum in future experiments.
Copyright comment Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
