6533b830fe1ef96bd1297c10
RESEARCH PRODUCT
Quantum nonlocality in extended theories of gravity
Victor A. S. V. BittencourtMassimo BlasoneFabrizio IlluminatiLuciano PetruzzielloGiuseppe Gaetano LucianoGaetano Lambiasesubject
High Energy Physics - TheoryPhysicsQuantum PhysicsGravity (chemistry)Spacetime010308 nuclear & particles physicsGeneral relativityDegrees of freedom (physics and chemistry)FOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)Quantum PhysicsCurvature01 natural sciencesGeneral Relativity and Quantum CosmologyMassless particleGeneral Relativity and Quantum CosmologyTheoretical physicsQuantum nonlocalityHigh Energy Physics - Theory (hep-th)0103 physical sciencesQuantum Physics (quant-ph)010306 general physicsQuantumdescription
We investigate how pure-state Einstein-Podolsky-Rosen correlations in the internal degrees of freedom of massive particles are affected by a curved spacetime background described by extended theories of gravity. We consider models for which the corrections to the Einstein-Hilbert action are quadratic in the curvature invariants and we focus on the weak-field limit. We quantify nonlocal quantum correlations by means of the violation of the Clauser-Horne-Shimony-Holt inequality, and show how a curved background suppresses the violation by a leading term due to general relativity and a further contribution due to the corrections to Einstein gravity. Our results can be generalized to massless particles such as photon pairs and can thus be suitably exploited to devise precise experimental tests of extended models of gravity.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-12-30 |