On the response of detectors in classical electromagnetic backgrounds
L. Sriramkumar
Abstract
I study the response of a detector that is coupled non-linearly to a quantized complex scalar field in different types of classical electromagnetic backgrounds. Assuming that the quantum field is in the vacuum state, I show that, when in inertial motion, the detector responds only when the electromagnetic background produces particles. However, I find that the response of the detector is not proportional to the number of particles produced by the background.
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