Characterising a solid state qubit via environmental noise
J. F. Ralph, T. D. Clark, M. J. Everitt, H. Prance, P. Stiffell, R. J. Prance
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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