trailSpontaneous analogue Hawking radiation has been detected at sonic horizons in Bose-Einstein condensates.
Analogue Hawking radiation has been observed in laboratory systems.
Technion correlation measurements· for
Steinhauer's Technion experiments observed correlated phonon pairs across a sonic horizon in a Bose-Einstein condensate.
A sonic horizon separating subsonic and supersonic flow can be created in a flowing Bose-Einstein condensate.
The cross-horizon density correlation signature was reproduced in successive Technion BEC experiments with improved statistics.
Simulations of BEC sonic horizons with thermal phonon populations reproduce the cross-horizon density correlation pattern.
The correlation spectrum measured at a BEC sonic horizon was thermal at the temperature predicted by Hawking's formula.
The analogue Hawking radiation observed in the 2021 Technion experiment was stationary in time.
Theoretical models reproducing the 2019 BEC horizon correlation data predict significant departures from a thermal Hawking spectrum
Classical-origin objection· against
The reported BEC analogue Hawking signal can be explained by amplified classical noise rather than quantum vacuum emission.
Amplification of thermal or classical fluctuations at a sonic horizon can produce cross-horizon correlations resembling spontaneous Hawking radiation.
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The 2016 Technion measurement statistically established entanglement of the observed Hawking phonon pairs.
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assumed
Analogue gravity predicts that sonic horizons in flowing fluids emit thermal Hawking-like phonon radiation.
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Spontaneous analogue Hawking radiation has been detected at sonic horizons in Bose-Einstein condensates.
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