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Vacuum Rabi splitting due to strong coupling of a flux qubit and a coplanar-waveguide resonator

Abdumalikov, Abdufarrukh A. and Astafiev, Oleg and Nakamura, Yasunobu and Pashkin, Yuri A. and Tsai, JawShen (2008) Vacuum Rabi splitting due to strong coupling of a flux qubit and a coplanar-waveguide resonator. Physical review b, 78 (18). -. ISSN 1098-0121

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Abstract

We have experimentally studied a superconducting flux qubit strongly coupled to a single mode of a high-quality transmission-type coplanar-waveguide resonator. The qubit-resonator coupling is revealed in the resonator transmission spectrum as a vacuum Rabi splitting. In the dispersive regime the qubit energy levels are spectroscopically probed. We observe a shift in the qubit transition frequency that linearly depends on the number of photons in the resonator, which is attributed to the ac-Zeeman shift. The observations are in agreement with the theoretical predictions.

Item Type: Article
Journal or Publication Title: Physical review b
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
ID Code: 57823
Deposited By: ep_importer_pure
Deposited On: 29 Aug 2012 09:09
Refereed?: Yes
Published?: Published
Last Modified: 21 Sep 2017 05:10
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/57823

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