Рет қаралды 36
Title: Duality between amplitude and derivative coupled particle detectors in the limit of large energy gaps
Abstract: In this talk, we are going to present a duality between models of particle detectors, namely, between a model where the particle is coupled to the amplitude of the field and a model where the particle couples to the derivative of the field. We show that, in the limit of large energy gaps, the models can be mapped to each other in a one-to-one fashion, modulo a rescaling by the detector’s energy gap. This analysis is valid for scalar fields in arbitrary curved spacetimes and requires minimal assumptions regarding the detectors. The duality also applies to cases where more than one detector is coupled to the field, which means that many examples of entanglement harvesting with amplitude-coupled UDW detectors yield exactly the same result as derivative-coupled detectors that interact with the field in the same region of spacetime.
Talk delivered at the IQC on October 27th 2023.