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Title:
Hawking Radiation and Greybody Factor of Scalar Particles.

Abstract:
The study of quantum fields propagating in the curved spacetime background
such as black holes is of great interest because it predicts particle
emission by a black hole and thermal black body spectrum represented by the
Hawking temperature. This is due to the different vacuum states between the
vicinity of the horizon and spatial infinity. Hence, the relative quantity
dubbed the ”greybody factor” (or decay rate or absorption probability) can
be defined by the decay rate between the blackbody spectrum from the black
hole horizon and the asymptotic spectrum. This is closely related to the
Hawking temperature and the absorption cross section of the black hole.

این سمینار در روز <یک شنبه> <۳ اردیبهشت ۱۳۹۱> در ساعت <۱۵:۰۰> در اتاق ۵۱۳ (اتاق شورا) در طبقهٔ پنجم دانشکدهٔ فیزیک برگزار خواهد شد.