A new family of asymptotically static moving mirrors produces long-lived thermal radiation with finite energy and a pure state, and unitarity forces a brief negative energy flux that vanishes as the mirror's entropy peaks.
On Horizonless Temperature with an Accelerating Mirror
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abstract
A new solution of a unitary moving mirror is found to produce finite energy and emit thermal radiation despite the absence of an acceleration horizon. In the limit that the mirror approaches the speed of light, the model corresponds to a black hole formed from the collapse of a null shell. For speeds less than light, the black hole correspondence, if it exists, is that of a remnant.
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Remnant-free Moving Mirror Model for Black Hole Radiation Field
A new family of asymptotically static moving mirrors produces long-lived thermal radiation with finite energy and a pure state, and unitarity forces a brief negative energy flux that vanishes as the mirror's entropy peaks.