Minimal resonator loss for circuit quantum electrodynamics

A. Endo; J. J. A. Baselmans; N. Vercruyssen; P. Diener; P. J. de Visser; R. Barends; S. J. C. Yates; T. M. Klapwijk; T. Zijlstra

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Minimal resonator loss for circuit quantum electrodynamics

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arxiv 1005.0408 v1 pith:EJSYKTKK submitted 2010-05-03 cond-mat.mes-hall cond-mat.supr-con

Minimal resonator loss for circuit quantum electrodynamics

R. Barends , N. Vercruyssen , A. Endo , P. J. de Visser , T. Zijlstra , T. M. Klapwijk , P. Diener , S. J. C. Yates

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J. J. A. Baselmans

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classification cond-mat.mes-hall cond-mat.supr-con

keywords dielectriclossnbtincircuitcomparisondemonstratedelectrodynamicsfactors

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Single photon level quality factors of 500x10^3 are shown in NbTiN superconducting resonators at millikelvin temperatures. This result originates from the intrinsic low dielectric loss of NbTiN, as demonstrated by comparison with Ta, and by removing unnecessary parts of the dielectric substrate.

Minimal resonator loss for circuit quantum electrodynamics

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