Charge sensitivity of a cavity-embedded Cooper pair transistor limited by single-photon shot noise
Charge sensitivity of a cavity-embedded Cooper pair transistor limited by single-photon shot noise
Using an operator scattering approach, we analyze the quantum dynamics of an ultrasensitive electrometer—a Cooper pair transistor embedded in a quarter-wave microwave cavity (cCPT). While the cCPT is inherently a tunable, strongly nonlinear system affording a diverse range of functionalities, we restrict our present analysis to a necessary first investigation …