Quantum nonlocality in extended theories of gravity
- Resource Type
- Authors
- Victor A. S. V. Bittencourt; Massimo Blasone; Fabrizio Illuminati; Luciano Petruzziello; Giuseppe Gaetano Luciano; Gaetano Lambiase
- Source
- Subject
- High Energy Physics - Theory
Physics
Quantum Physics
Gravity (chemistry)
Spacetime
010308 nuclear & particles physics
General relativity
Degrees of freedom (physics and chemistry)
FOS: Physical sciences
General Relativity and Quantum Cosmology (gr-qc)
Curvature
01 natural sciences
General Relativity and Quantum Cosmology
Massless particle
Theoretical physics
Quantum nonlocality
High Energy Physics - Theory (hep-th)
0103 physical sciences
Quantum Physics (quant-ph)
010306 general physics
Quantum
- Language
- English
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.