Quantum Vacuum Excitation of a Quasinormal Mode in an Analog Model of Black Hole Spacetime

M. J. Jacquet, L. Giacomelli, Q. Valnais, M. Joly, F. Claude, E. Giacobino, Q. Glorieux, I. Carusotto, and A. Bramati
Phys. Rev. Lett. 130, 111501 – Published 15 March 2023
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Abstract

Vacuum quantum fluctuations near horizons are known to yield correlated emission by the Hawking effect. We use a driven-dissipative quantum fluid of microcavity polaritons as an analog model of a quantum field theory on a black-hole spacetime and numerically calculate correlated emission. We show that, in addition to the Hawking effect at the sonic horizon, quantum fluctuations may result in a sizable stationary excitation of a quasinormal mode of the field theory. Observable signatures of the excitation of the quasinormal mode are found in the spatial density fluctuations as well as in the spectrum of Hawking emission. This suggests an intrinsic fluctuation-driven mechanism leading to the quantum excitation of quasinormal modes on black hole spacetimes.

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  • Received 11 March 2022
  • Revised 18 January 2023
  • Accepted 17 February 2023

DOI:https://doi.org/10.1103/PhysRevLett.130.111501

© 2023 American Physical Society

Physics Subject Headings (PhySH)

Gravitation, Cosmology & AstrophysicsAtomic, Molecular & OpticalGeneral Physics

Authors & Affiliations

M. J. Jacquet1,*, L. Giacomelli2, Q. Valnais1, M. Joly1, F. Claude1, E. Giacobino1, Q. Glorieux1, I. Carusotto2, and A. Bramati1

  • 1Laboratoire Kastler Brossel, Sorbonne Université, CNRS, ENS-Université PSL, Collège de France, Paris 75005, France
  • 2INO-CNR BEC Center and Dipartimento di Fisica, Università di Trento, via Sommarive 14, I-38123 Povo, Trento, Italy

  • *Corresponding author. maxime.jacquet@lkb.upmc.fr

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Issue

Vol. 130, Iss. 11 — 17 March 2023

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