Hawking Radiation, Covariant Boundary Conditions and Vacuum States
نویسندگان
چکیده
The basic characteristics of the covariant current < Jμ > and the covariant energymomentum tensor < Tμν > 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 [2, 4, 5, 6] of computing the Hawking flux from chiral gauge and gravitational anomalies. We also discuss a connection between the trace anomaly and the gravitational anomaly.
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تاریخ انتشار 2009