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Minimal resonator loss for circuit quantum electrodynamics

Barends, R. and Vercruyssen, N. and Endo, A. and de Visser, P. J. and Zijlstra, T. and Klapwijk, T. M. and Diener, P. and Yates, S. J. C. and Baselmans, J. J. A. (2010) Minimal resonator loss for circuit quantum electrodynamics. Applied Physics Letters, 97 (2). Art. No. 023508. ISSN 0003-6951. http://resolver.caltech.edu/CaltechAUTHORS:20160311-141910535

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Abstract

We report quality factors of up to 500 × 10^3 in superconducting resonators at the single photon levels needed for circuit quantum electrodynamics. This result is achieved by using NbTiN and removing the dielectric from regions with high electric fields. As demonstrated by a comparison with Ta, the crucial sources of intensity-dependent loss are dielectrics on the surface of the metal and substrate.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1063/1.3458705DOIArticle
http://scitation.aip.org/content/aip/journal/apl/97/2/10.1063/1.3458705PublisherArticle
http://arxiv.org/abs/1005.0408arXivDiscussion Paper
Additional Information:© 2010 American Institute of Physics. Received 3 May 2010; accepted 9 June 2010; published online 13 July 2010. The authors thank J. M. Martinis and P. Forn-Díaz for stimulating discussions. The work was supported by the Pieter Langerhuizen Lambertuszoon funds of the Royal Holland Society of Sciences and Humanities and by the EU NanoSciERA project “Nanofridge.”
Group:Keck Institute for Space Studies
Funders:
Funding AgencyGrant Number
Pieter Langerhuizen Lambertuszoon FondsUNSPECIFIED
EU NanoSciERAUNSPECIFIED
Record Number:CaltechAUTHORS:20160311-141910535
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20160311-141910535
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:65310
Collection:CaltechAUTHORS
Deposited By: Colette Connor
Deposited On:11 Mar 2016 22:30
Last Modified:11 Mar 2016 22:30

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