Observation of negative-frequency waves in a water tank: a classical analogue to the Hawking effect?

Germain Rousseaux; Christian Mathis; Philippe Maissa; Thomas G. Philbin; Ulf Leonhardt

doi:10.1088/1367-2630/10/5/053015

Observation of negative-frequency waves in a water tank: a classical analogue to the Hawking effect?

Germain Rousseaux, Christian Mathis, Philippe Maissa, Thomas G. Philbin, Ulf Leonhardt

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract

The conversion of positive-frequency waves into negative-frequency waves at the event horizon is the mechanism at the heart of the Hawking radiation of black holes. In black-hole analogues, horizons are formed for waves propagating in a medium against the current when and where the flow exceeds the wave velocity. We report on the first direct observation of negative-frequency waves converted from positive-frequency waves in a moving medium. The measured degree of mode conversion is significantly higher than that expected from the theory.

Original language	English
Article number	053015
Number of pages	12
Journal	New Journal of Physics
Volume	10
DOIs	https://doi.org/10.1088/1367-2630/10/5/053015
Publication status	Published - 13 May 2008

Keywords

BLACK-HOLE EVAPORATION
QUANTUM PHYSICS
SONIC ANALOG
RADIATION

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10.1088/1367-2630/10/5/053015

Cite this

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title = "Observation of negative-frequency waves in a water tank: a classical analogue to the Hawking effect?",

abstract = "The conversion of positive-frequency waves into negative-frequency waves at the event horizon is the mechanism at the heart of the Hawking radiation of black holes. In black-hole analogues, horizons are formed for waves propagating in a medium against the current when and where the flow exceeds the wave velocity. We report on the first direct observation of negative-frequency waves converted from positive-frequency waves in a moving medium. The measured degree of mode conversion is significantly higher than that expected from the theory.",

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author = "Germain Rousseaux and Christian Mathis and Philippe Maissa and Philbin, {Thomas G.} and Ulf Leonhardt",

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AU - Philbin, Thomas G.

AU - Leonhardt, Ulf

PY - 2008/5/13

Y1 - 2008/5/13

N2 - The conversion of positive-frequency waves into negative-frequency waves at the event horizon is the mechanism at the heart of the Hawking radiation of black holes. In black-hole analogues, horizons are formed for waves propagating in a medium against the current when and where the flow exceeds the wave velocity. We report on the first direct observation of negative-frequency waves converted from positive-frequency waves in a moving medium. The measured degree of mode conversion is significantly higher than that expected from the theory.

AB - The conversion of positive-frequency waves into negative-frequency waves at the event horizon is the mechanism at the heart of the Hawking radiation of black holes. In black-hole analogues, horizons are formed for waves propagating in a medium against the current when and where the flow exceeds the wave velocity. We report on the first direct observation of negative-frequency waves converted from positive-frequency waves in a moving medium. The measured degree of mode conversion is significantly higher than that expected from the theory.

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KW - QUANTUM PHYSICS

KW - SONIC ANALOG

KW - RADIATION

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JO - New Journal of Physics

JF - New Journal of Physics

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Observation of negative-frequency waves in a water tank: a classical analogue to the Hawking effect?

Abstract

Keywords

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EP/C523229/1: Multidisciplinary Critical Mass in Computational Algebra and Applications

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Observation of negative-frequency waves in a water tank: a classical analogue to the Hawking effect?

Abstract

Keywords

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EP/C523229/1: Multidisciplinary Critical Mass in Computational Algebra and Applications

Cite this