Infrared scaling for a graviton condensate

Bose, Sougato; Mazumdar, Anupam; Toroš, Marko

doi:10.1016/j.nuclphysb.2022.115730

Cited by 6 publications

(1 citation statement)

References 49 publications

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“…These parameters will generate an appreciable graviton-induced entanglement phase and will dominate over the photon induced Casimir–Polder potential for neutral masses. The mass range of the quantum system is such that it effectively modifies the graviton vacuum by less than one-graviton excitation [ 55 , 56 ], and the emission of any gravitational waves is indeed negligible [ 57 , 58 ].…”

Section: Eewepmentioning

confidence: 99%

Entanglement Witness for the Weak Equivalence Principle

Bose

Mazumdar

Martine

et al. 2023

Entropy

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The Einstein equivalence principle is based on the equality of gravitational and inertial mass, which has led to the universality of a free-fall concept. The principle has been extremely well tested so far and has been tested with a great precision. However, all these tests and the corresponding arguments are based on a classical setup where the notion of position and velocity of the mass is associated with a classical value as opposed to the quantum entities.Here, we provide a simple quantum protocol based on creating large spatial superposition states in a laboratory to test the quantum regime of the equivalence principle where both matter and gravity are treated at par as a quantum entity. The two gravitational masses of the two spatial superpositions source the gravitational potential for each other. We argue that such a quantum protocol is unique with regard to testing especially the generalisation of the weak equivalence principle by constraining the equality of gravitational and inertial mass via witnessing quantum entanglement.

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