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.
atomic
The correlation spectrum measured at a BEC sonic horizon was thermal at the temperature predicted by Hawking's formula.
atomic
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 did not statistically establish entanglement of the observed Hawking phonon pairs.
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The analogue Hawking radiation observed in the 2021 Technion experiment was stationary in time.
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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