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Type: Artigo de periódico
Title: Generation of superposition states and charge-qubit relaxation probing in a circuit
Author: Neto, OPD
de Oliveira, MC
Caldeira, AO
Abstract: We demonstrate how a superposition of coherent states can be generated for a microwave field inside a coplanar transmission line coupled to a single superconducting charge qubit, with the addition of a single classical magnetic pulse for chirping of the qubit transition frequency. We show how the qubit dephasing induces decoherence on the field superposition state, and how it can be probed by the qubit charge detection. The character of the charge qubit relaxation process itself is imprinted in the field state decoherence profile.
Country: Inglaterra
Editor: Iop Publishing Ltd
Citation: Journal Of Physics B-atomic Molecular And Optical Physics. Iop Publishing Ltd, v. 44, n. 13, 2011.
Rights: fechado
Identifier DOI: 10.1088/0953-4075/44/13/135503
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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