Conformal Invariance of Black Hole Temperature
نویسندگان
چکیده
It is shown that the surface gravity and temperature of a stationary black hole are invariant under conformal transformations of the metric that are the identity at infinity. More precisely, we find a conformal invariant definition of the surface gravity of a conformal Killing horizon that agrees with the usual definition(s) for a true Killing horizon and is proportional to the temperature as defined by Hawking radiation. This result is reconciled with the intimate relation between the trace anomaly and the Hawking effect, despite the noninvariance of the trace anomaly under conformal transformations. jacobson@umdhep [email protected]
منابع مشابه
Russian Gravitational Society Institute of Metrological Service Center of Gravitation and Fundamental Metrology
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