Quantum theory in external electromagnetic and gravitational fields: A comparison of some conceptual issues
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Date
1991-09-03
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Indian Academy of Sciences
Abstract
The quantum theories of a scalar field interacting with external electromagnetic and gravitational fields respectively are compared. It is shown that several peculiar features, like the ambiguity of particle definition, thermal affects etc., which are thought to be special to quantum theory in curved spacetime, have analogues in the case of electromagnetism.
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Keywords
Quantum theory, Qunatum gravity, Rindler frames, Hawking radiation, Pair creation, Expanding universe