Non-demolition dispersive measurement of a superconducting qubit with a microstrip SQUID amplifier

Authors:
G. P. Berman;D. I. Kamenev;D. Kinion;V. I. Tsifrinovich
Affiliations:
Theoretical Division and CNLS, Los Alamos National Laboratory, Los Alamos, NM;Theoretical Division and CNLS, Los Alamos National Laboratory, Los Alamos, NM;Lawrence Livermore National Laboratory, Livermore, CA;Department of Applied Physics, Polytechnic Institute of NYU, Brooklyn, NY
Venue:
Quantum Information & Computation
Year:
2012

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Abstract

We have studied the possibility of a single-shot non-demolition measurement of a superconducting qubit using a microstrip SQUID amplifier (MSA). The Johnson noise generated by all resistors in the MSA is taken into consideration. We show that a single-shot non-demolition measurement is possible with six photons in the measurement resonator.