trailThe predicted Hawking spectrum is insensitive to modifications of trans-Planckian dispersion relations.
The derivation of Hawking radiation depends on unknown trans-Planckian physics.
Modified-dispersion calculations· for
Modified trans-Planckian dispersion relations in black-hole models preserve the thermal spectrum at the Hawking temperature.
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Analogue-gravity evidence· for
Analogue Hawking radiation has been observed in laboratory systems.
Spontaneous analogue Hawking radiation has been detected at sonic horizons in Bose-Einstein condensates.
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Stimulated Hawking emission has been measured at analogue horizons in water-wave experiments.
Stimulated analogue Hawking radiation has been observed in nonlinear optical systems.
The reported BEC analogue Hawking signal can be explained by amplified classical noise rather than quantum vacuum emission.
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Conditionality of the robustness results· against
The Hawking spectrum's insensitivity to modified dispersion holds only under conditions such as a free-falling vacuum and adiabatic evolution.
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The predicted Hawking spectrum is insensitive to modifications of trans-Planckian dispersion relations.
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