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Trapped Ion Quantum Computing Superconducting Qubits

Proposal for detection of a single electron spin in a microwave resonator

arXiv

Authors: P. Haikka, Y. Kubo, A. Bienfait, P. Bertet, K. Moelmer

Year

2016

Paper ID

43789

Status

Preprint

Abstract Read

~2 min

Abstract Words

104

Citations

N/A

Abstract

We propose a method for detecting the presence of a single spin in a crystal by coupling it to a high-quality factor superconducting planar resonator. By confining the microwave field in a constriction of nanometric dimensions, the coupling constant can be as high as 5-10\,kHz. This coupling affects the amplitude of the field emitted by the resonator, and the integrated homodyne signal allows detection of a single spin with unit signal-to-noise ratio within few milliseconds. We further show that a stochastic master equation approach and a Bayesian analysis of the full time dependent homodyne signal improves this figure by sim 30\% for typical parameters.

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We propose a method for detecting the presence of a single spin in a crystal by coupling it to a high-quality factor superconducting planar resonator.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:1609.01132 [2] arXiv https://arxiv.org/abs/1609.01132 [3] Publisher https://arxiv.org/abs/1609.01132

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