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Analogue Gravity Phenomenology pp 167–180Cite as

Classical Aspects of Hawking Radiation Verified in Analogue Gravity Experiment

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Part of the book series: Lecture Notes in Physics ((LNP,volume 870))

Abstract

There is an analogy between the propagation of fields on a curved spacetime and shallow water waves in an open channel flow. By placing a streamlined obstacle into an open channel flow we create a region of high velocity over the obstacle that can include wave horizons. Long (shallow water) waves propagating upstream towards this region are blocked and converted into short (deep water) waves. This is the analogue of the stimulated Hawking emission by a white hole (the time inverse of a black hole). The measurements of amplitudes of the converted waves demonstrate that they appear in pairs and are classically correlated; the spectra of the conversion process is described by a Boltzmann-distribution; and the Boltzmann-distribution is determined by the change in flow across the white hole horizon.

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Notes

  1. 1.

    The original derivation by Hawking radiation predicts that the quantum field excitations in the initial state—which are responsible for the late time radiation—have frequencies exponentially higher than the frequency associated with the Planck scale [5, 12].

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Author information

Authors and Affiliations

  1. SISSA—International School for Advanced Studies, Via Bonomea 265, 34136, Trieste, Italy

    Silke Weinfurtner

  2. Department of Civil Engineering, University of British Columbia, 6250 Applied Science Lane, Vancouver, V6T 1Z4, Canada

    Edmund W. Tedford & Gregory A. Lawrence

  3. Department of Physics and Astronomy, University of Victoria, Victoria, V8W 3P6, Canada

    Matthew C. J. Penrice

  4. Department of Physics and Astronomy, University of British Columbia, Vancouver, V6T 1Z1, Canada

    William G. Unruh

Authors
  1. Silke Weinfurtner
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  2. Edmund W. Tedford
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  3. Matthew C. J. Penrice
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  4. William G. Unruh
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  5. Gregory A. Lawrence
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Corresponding author

Correspondence to Silke Weinfurtner .

Editor information

Editors and Affiliations

  1. School of Engineering and Physical Science, Heriot-Watt University, Edinburgh, United Kingdom

    Daniele Faccio

  2. Dipartimento di Matematica, Politecnico di Milano, Milano, Italy

    Francesco Belgiorno

  3. Dipartimento di Fisica e Matematica, Universita’ dell’Insubria, Como, Italy

    Sergio Cacciatori

  4. Dipartimento di Fisica e Matematica, Universita’ dell’Insubria, Como, Italy

    Vittorio Gorini

  5. Int. School for Adv. Studies (SISSA), Trieste, Italy

    Stefano Liberati

  6. Dipartimento di Fisica e Matematica, Universita’ dell’Insubria, Como, Italy

    Ugo Moschella

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Weinfurtner, S., Tedford, E.W., Penrice, M.C.J., Unruh, W.G., Lawrence, G.A. (2013). Classical Aspects of Hawking Radiation Verified in Analogue Gravity Experiment. In: Faccio, D., Belgiorno, F., Cacciatori, S., Gorini, V., Liberati, S., Moschella, U. (eds) Analogue Gravity Phenomenology. Lecture Notes in Physics, vol 870. Springer, Cham. https://doi.org/10.1007/978-3-319-00266-8_8

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