Quantum theory in external electromagnetic and gravitational fields: A comparison of some conceptual issues
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 effects etc., which are thought to be special to quantum theory in curved spacetime, have analogues in the case of electromagnetism.
Volume 94, 2020
Continuous Article Publishing mode
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