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Hawking Radiation, Covariant Boundary Conditions and Vacuum States | | Rabin Banerjee
; Shailesh Kulkarni
; | | Date: |
31 Oct 2008 | | Abstract: | The basic characteristics of the covariant current $<J_{mu}>$ and the
covariant energy-momentum tensor $<T_{mu
u}>$ in Unruh, Hartle-Hawking and
Boulware states are obtained from a chiral effective action. These results are
used to justify the covariant boundary condition used in recent approaches
cite{Isowilczek,shailesh,shailesh2,Banerjee} of computing the Hawking flux
from chiral gauge and gravitational anomalies. We also discuss a connection
between the trace anomaly and the gravitational anomaly. | | Source: | arXiv, 0810.5683 | | Services: | Forum | Review | PDF | Favorites | |
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