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arxiv: cond-mat/0306475 · v2 · submitted 2003-06-18 · ❄️ cond-mat.supr-con · quant-ph

Characterising a solid state qubit via environmental noise

classification ❄️ cond-mat.supr-con quant-ph
keywords noisequbitcharacterisingfieldlevelappliedbiasclassical
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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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