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arXiv · 1112.0357

Non-Demolition Dispersive Measurement of a Superconducting Qubit with a Microstrip SQUID Amplifier

G. P. Berman·D. I. Kamenev·D. Kinion·V. I. Tsifrinovich
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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. For a phase qubit inductively coupled to a measurement resonator we have obtained the expression for the mutual inductance required for measurement of the qubit state.

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G. P. Berman, D. I. Kamenev, D. Kinion, V. I. Tsifrinovich. 2011-12-01. Non-Demolition Dispersive Measurement of a Superconducting Qubit with a Microstrip SQUID Amplifier. https://arxiv.org/abs/1112.0357

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