2 papers
quant-ph2018
Active protection of a superconducting qubit with an interferometric Josephson isolator
Baleegh Abdo, Nicholas T. Bronn, Oblesh Jinka +8
Nonreciprocal microwave devices play several critical roles in high-fidelity, quantum-nondemolition (QND) measurement schemes. They separate input from output, impose unidirectiona…
physics.ins-det2017
Multi-Path Interferometric Josephson Directional Amplifier for Qubit Readout
Baleegh Abdo, Nick Bronn, Oblesh Jinka +3
We realize and characterize a quantum-limited, directional Josephson amplifier suitable for qubit readout. The device consists of two nondegenerate, three-wave-mixing amplifiers th…