Several quantum gravity scenarios lead to physics below the Planck scale characterised by nonlocal, Lorentz invariant equations of motion. We show that such non-local effective field theories lead to a modified Schrödinger evolution in the nonrelativistic limit. In particular, the nonlocal evolution of opto-mechanical quantum oscillators is characterised by a spontaneous periodic squeezing that cannot be generated by environmental effects. We discuss constraints on the nonlocality obtained by past experiments, and show how future experiments (already under construction) will either see such effects or otherwise cast severe bounds on the non-locality scale (well beyond the current limits set by the Large Hadron Collider). This paves the way for table top, high precision experiments on massive quantum objects as a promising new avenue for testing some quantum gravity phenomenology.

Testing Quantum Gravity Induced Nonlocality via Optomechanical Quantum Oscillators / Belenchia, Alessio; Benincasa, Dionigi M.  T.; Liberati, Stefano; Marin, Francesco; Marino, Francesco; Ortolan, Antonello. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 116:16(2016), pp. 1-5. [10.1103/PhysRevLett.116.161303]

Testing Quantum Gravity Induced Nonlocality via Optomechanical Quantum Oscillators

Belenchia, Alessio;Liberati, Stefano;Marin, Francesco;Marino, Francesco;Ortolan, Antonello
2016

Abstract

Several quantum gravity scenarios lead to physics below the Planck scale characterised by nonlocal, Lorentz invariant equations of motion. We show that such non-local effective field theories lead to a modified Schrödinger evolution in the nonrelativistic limit. In particular, the nonlocal evolution of opto-mechanical quantum oscillators is characterised by a spontaneous periodic squeezing that cannot be generated by environmental effects. We discuss constraints on the nonlocality obtained by past experiments, and show how future experiments (already under construction) will either see such effects or otherwise cast severe bounds on the non-locality scale (well beyond the current limits set by the Large Hadron Collider). This paves the way for table top, high precision experiments on massive quantum objects as a promising new avenue for testing some quantum gravity phenomenology.
116
16
1
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161303
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.116.161303
https://arxiv.org/abs/1512.02083
Belenchia, Alessio; Benincasa, Dionigi M.  T.; Liberati, Stefano; Marin, Francesco; Marino, Francesco; Ortolan, Antonello
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11767/86134
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