Weak measurement and feedback in superconducting quantum circuits

KW Murch, R Vijay, I Siddiqi - Superconducting Devices in Quantum Optics, 2016 - Springer
We describe the implementation of weak quantum measurements in superconducting
qubits, focusing specifically on transmon type devices in the circuit quantum …

[图书][B] Dispersive qubit measurement using an on-chip parametric amplifier

B Levitan - 2015 - search.proquest.com
We investigate the quantum measurement physics of a system in which a phase-sensitive
parametric amplifier is used to directly measure a qubit to which it is coupled dispersively. By …

Approaching quantum-limited amplification with large gain catalyzed by hybrid nonlinear media in cavity optomechanics

Q Zheng, K Li, Y Li - arXiv preprint arXiv:1605.00199, 2016 - arxiv.org
Amplifier is at the heart of almost all experiment carrying out the precise measurement of a
weak signal. An idea amplifier should have large gain and minimum added noise …