Abstract
We propose a system comprising the small-capacitance double Josephson junction shunted as a whole by a small resistance . We have calculated the dynamic and noise characteristics of the system as functions of a polarization charge on the central electrode. It has been shown straightforwardly that the energy resolution of such an electrometer implying the “backaction noise” approaches the fundamental quantum limit when .
- Received 3 October 1995
DOI:https://doi.org/10.1103/PhysRevLett.76.4408
©1996 American Physical Society