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arXiv · cond-mat/0306475

Characterising a solid state qubit via environmental noise

J. F. Ralph·T. D. Clark·M. J. Everitt·H. Prance·P. Stiffell·R. J. Prance
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Abstract

We propose a method for characterising the energy level structure of a solid-state qubit by monitoring the noise level in its environment. We consider a model persistent-current qubit in a lossy resevoir and demonstrate that the noise in a classical bias field is a sensitive function of the applied field.

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J. F. Ralph, T. D. Clark, M. J. Everitt, H. Prance, P. Stiffell, R. J. Prance. 2003-08-20. Characterising a solid state qubit via environmental noise. https://doi.org/10.1016/j.physleta.2003.08.061

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