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Covariant Anomalies, Horizons and Hawking Radiation

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 نشر من قبل Rabin Banerjee
 تاريخ النشر 2008
  مجال البحث فيزياء
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 تأليف Rabin Banerjee




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Hawking radiation is obtained from anomalies resulting from a breaking of diffeomorphism symmetry near the event horizon of a black hole. Such anomalies, manifested as a nonconservation of the energy momentum tensor, occur in two different forms -- covariant and consistent. The crucial role of covariant anomalies near the horizon is revealed since this is the {it only} input required to obtain the Hawking flux, thereby highlighting the universality of this effect. A brief description to apply this method to obtain thermodynamic entities like entropy or temperature is provided.



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