Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

On unitary evolution of a massless scalar field in a Schwarzschild background: Hawking radiation and the information paradox

Technical Report ·
DOI:https://doi.org/10.2172/799931· OSTI ID:799931
We develop a Hamiltonian formalism which can be used to discuss the physics of a massless scalar field in a gravitational background of a Schwarzschild black hole. Using this formalism we show that the time evolution of the system is unitary and yet all known results such as the existence of Hawking radiation can be readily understood. We then point out that the Hamiltonian formalism leads to interesting observations about black hole entropy and the information paradox.
Research Organization:
Stanford Linear Accelerator Center, Menlo Park, CA (US)
Sponsoring Organization:
USDOE Office of Energy Research (ER) (US)
DOE Contract Number:
AC03-76SF00515;
OSTI ID:
799931
Report Number(s):
SLAC-PUB-9224
Country of Publication:
United States
Language:
English

Similar Records

Black Holes, Hawking Radiation and the Information Paradox
Technical Report · Mon Nov 18 19:00:00 EST 2002 · OSTI ID:808686

A Canonical Hamiltonian Derivation of Hawking Radiation
Technical Report · Wed Oct 10 20:00:00 EDT 2001 · OSTI ID:798878

Moving Mirrors, Black Holes, Hawking Radiation and All That
Technical Report · Wed Nov 07 19:00:00 EST 2001 · OSTI ID:798918