Cited by 88Strong Light-Matter InteractionsQuantum Electrodynamics and Casimir EffectBlack Holes and Theoretical Physics

Analog Hawking radiation from an acoustic black hole in a flowing polariton superfluid

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Gerace, Dario, Carusotto, Iacopo·2012·Physical Review B

Abstract

We theoretically study Hawking radiation processes from an analog acoustic black hole in a flowing superfluid of exciton-polaritons in a one-dimensional semiconductor microcavity. Polaritons are coherently injected into the microcavity by a laser pump with a suitably tailored spot profile. An event horizon with a large analog surface gravity is created by inserting a defect in the polariton flow along the cavity plane. Experimentally observable signatures of the analog Hawking radiation are identified in the scattering of phonon wave packets off the horizon, as well as in the spatial correlation pattern of quantum fluctuations of the polariton density. The potential of these tabletop optical systems as analog models of gravitational physics is quantitatively confirmed by numerical calculations using realistic parameters for state-of-the-art devices.

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Crossref · 10.1103/physrevb.86.144505

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  • A natural way to achieve an analog black hole is to use a monochromatic pump and design its phase profile so as to have a small in-plane wavevector in the upstream region and a larger one in the downstream region.

    “A natural possibility to achieve this [96] is to use a monochromatic pump and to design its phase profile so as to have a small in-plane wavevector in the upstream region and a larger one in the downstream region.”

    From How to exploit driving and dissipation to stabilize and manipulate quantum many-body states (2025) · cites this paper as [96]

    Section II.B (p. 4) describes a pump with a spatially varied amplitude and a fixed in-plane wavevector in the pumped region; the downstream flow wavevector changes through propagation and losses. Section III (p. 6) describes creating a pronounced horizon with a defect. These passages support an upstream-to-downstream change in flow, but not the claimed method of designing the pump’s phase profile to set different wavevectors. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • Numerical studies based on the Wigner formalism have shown that a clear signature of Hawking radiation is present in the correlation function of density fluctuations on opposite sides of the horizon.

    “to this purpose, numerical studies based on the Wigner formalism have shown that a clear signature of the Hawking radiation is present in the correlation function of density fluctuations on opposite sides of the horizon [96,97].”

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Research works printed but not linked: 1

  1. 30 L. C. Andreani in Electron and Photon Confinement in Semiconductor Nanostructures , edited by B. Deveaud, A. Quattropani, and P. Schwendimann (IOS Press, Amsterdam, 2003), p. 105.

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Authors
Gerace, D., & Carusotto, I.
Affiliations
University of Pavia (IT)
Venue
Physical Review B
Published
2012-10-04
Volume
86
Issue
14
ISSN
  • 1098-0121 (ISSN-L)
  • 1550-235X
OpenAlex
W1988789196
Cited by
88
References
70
Citations by year
2026: 5 · 2025: 3 · 2024: 3 · 2023: 6 · 2022: 13 · 2021: 4 · 2020: 7 · 2019: 9 · 2018: 4 · 2017: 8 · 2016: 5 · 2015: 7 · 2014: 8 · 2013: 5 · 2012: 1
FWCI
3.48
Type
journal article
Language
en
Open access
Locations
  • Physical Review B (publishedVersion)
  • arXiv (Cornell University) (submittedVersion)
  • INO Open Portal (submittedVersion)
  • Institutional Research Information System (Università degli Studi di Trento) (submittedVersion)
  • arXiv (Cornell University)
Topics
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Strong Light-Matter Interactions
  • Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Quantum Electrodynamics and Casimir Effect
  • Physical Sciences › Physics and Astronomy › Nuclear and High Energy Physics › Black Holes and Theoretical Physics
Keywords
acoustic black holes, exciton-polaritons, semiconductor microcavities, event horizon, surface gravity, phonon scattering, quantum fluctuations, one-dimensional flow, analogue gravity

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