Testing Quantum Gravity Induced Nonlocality via Optomechanical Quantum Oscillators

Alessio Belenchia, Dionigi M. T. Benincasa, Stefano Liberati, Francesco Marin, Francesco Marino, and Antonello Ortolan
Phys. Rev. Lett. 116, 161303 – Published 21 April 2016

Abstract

Several quantum gravity scenarios lead to physics below the Planck scale characterized by nonlocal, Lorentz invariant equations of motion. We show that such nonlocal effective field theories lead to a modified Schrödinger evolution in the nonrelativistic limit. In particular, the nonlocal evolution of optomechanical quantum oscillators is characterized 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 nonlocality 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.

  • Figure
  • Received 18 December 2015

DOI:https://doi.org/10.1103/PhysRevLett.116.161303

© 2016 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & Astrophysics

Authors & Affiliations

Alessio Belenchia1,*, Dionigi M. T. Benincasa1,†, Stefano Liberati1,‡, Francesco Marin2,3,§, Francesco Marino4,∥, and Antonello Ortolan5,¶

  • 1SISSA, Via Bonomea 265, Trieste I-34136, Italy and INFN, Sez. di Trieste, Via Velerio 2, Trieste 34127 Italy
  • 2Dipartimento di Fisica e Astronomia, University of Florence and INFN, Sezione di Firenze, Via Sansone, 1, I-50019 Sesto Fiorentino, Firenze, Italy
  • 3European Laboratory for Non-Linear Spectroscopy (LENS), Via Carrara 1, I-50019 Sesto Fiorentino, Firenze, Italy
  • 4CNR-Istituto Nazionale di Ottica, Largo E. Fermi 6, I-50125 Firenze, Italy and INFN, Sez. di Firenze
  • 5INFN, Laboratori Nazionali di Legnaro, Viale dell’Università, 2, 35020 Legnaro, Padova, Italy

  • *abelen@sissa.it
  • dionigi.benincasa@sissa.it
  • liberati@sissa.it
  • §marin@fi.infn.it
  • marino@fi.infn.it
  • antonello.ortolan@lnl.infn.it

See Also

Tests of quantum-gravity-induced nonlocality via optomechanical experiments

Alessio Belenchia, Dionigi M. T. Benincasa, Stefano Liberati, Francesco Marin, Francesco Marino, and Antonello Ortolan
Phys. Rev. D 95, 026012 (2017)

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Issue

Vol. 116, Iss. 16 — 22 April 2016

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