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Observational Signatures of Quantum Gravity in Interferometers

Verlinde, Erik P. and Zurek, Kathryn M. (2019) Observational Signatures of Quantum Gravity in Interferometers. . (Unpublished)

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We consider the uncertainty in the arm length of an interferometer due to metric fluctuations from the quantum nature of gravity, proposing a concrete microscopic model of energy fluctuations in holographic degrees of freedom on the surface bounding a causally connected region of spacetime. In our model, fluctuations longitudinal to the beam direction accumulate in the infrared and feature strong long distance correlation in the transverse direction. This leads to a signal that could be observed in a gravitational wave interferometer. We connect the positional uncertainty principle arising from our calculations to the 't Hooft gravitational S-matrix.

Item Type:Report or Paper (Discussion Paper)
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Additional Information:We thank Rana Adhikari for discussions on the experimental prospects, Cliff Cheung for discussions and comments on the draft, as well as Craig Hogan and Grant Remmen for conversation at the very early stages of this work. KZ thanks the CERN theory group for hospitality over much of the duration of this work, as well as the audiences at the CERN and Pisa seminars for probing questions improving the presentation here. KZ is supported by the DoE under contract DE-AC02-05CH11231. The research of EV is supported by the grant "Scanning New Horizons" and a Spinoza grant of the Dutch Science Foundation (NWO).
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC02-05CH11231
Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)UNSPECIFIED
Record Number:CaltechAUTHORS:20190612-125540156
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:96326
Deposited By: Tony Diaz
Deposited On:12 Jun 2019 20:58
Last Modified:03 Oct 2019 21:21

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