Nanosecond quantum state detection in a current-biased dc SQUID
Nanosecond quantum state detection in a current-biased dc SQUID
This paper presents our procedure to measure the quantum state of a dc superconducting quantum interference device (SQUID) within a few nanoseconds, using an adiabatic dc flux pulse. Detection of the ground state is governed by standard macroscopic quantum tunneling (MQT) theory, with a small correction due to residual noise …