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Low energy signatures of nonlocal field theories

Alessio Belenchia1,2, Dionigi M. T. Benincasa1,2, Eduardo Martín-Martínez3,4,5, and Mehdi Saravani5,6

  • 1SISSA—International School for Advanced Studies, Via Bonomea 265, 34136 Trieste, Italy
  • 2INFN, Sezione di Trieste, Via Valerio 2, 34127 Trieste, Italy
  • 3Institute for Quantum Computing, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
  • 4Department of Applied Mathematics, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada
  • 5Perimeter Institute for Theoretical Physics, 31 Caroline Street North, Waterloo, Ontario N2L 2Y5, Canada
  • 6School of Mathematical Sciences, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom

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Phys. Rev. D 94, 061902(R) – Published 22 September, 2016

DOI: https://doi.org/10.1103/PhysRevD.94.061902

Abstract

The response of inertial particle detectors coupled to a scalar field satisfying nonlocal dynamics described by nonanalytic functions of the d’Alembertian operator □ is studied. We show that spontaneous emission processes of a low energy particle detector are very sensitive to high-energy nonlocality scales. This allows us to suggest a nuclear physics experiment (∼MeV energy scales) that outperforms the sensitivity of LHC experiments by many orders of magnitude. This may have implications for the falsifiability of theoretical proposals of quantum gravity.

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Phys. Rev. D 94, 061902(R)– Published 22 September, 2016
  • Received 12 May 2016

© 2016 American Physical Society

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