Authors: HaiJie Li YiWen Wang LianFu Wei PinJia Zhou Qiang Wei ChunHai Cao YuRong Fang Yang Yu PeiHeng Wu
Publish Date: 2013/07/20
Volume: 58, Issue: 20, Pages: 2413-2417
Abstract
We successfully designed and fabricated an absorptiontype of superconducting coplanar waveguide CPW resonators The resonators are made from a niobium film about 160 nm thick on a highresistance Si substrate and each resonator is fabricated as a meandered quarterwavelength transmission line one end is short to the ground and another end is capacitively coupled to a through feedline With a vector network analyzer we measured the transmissions of the applied microwave through the resonators at ultralow temperature The obtained loaded quality factors are significantly high ie up to ∼106 When the temperature increases slowly from the base temperature 20 mK the resonance frequencies of the resonators are blue shifted and the quality factors are lowered slightly In principle this type of device can integrate a series of CPW resonators with a common feedline making it a promising candidate as the data bus for coupling distant solidstate qubits and the sensitive detector of single photonsThis article is published under an open access license Please check the Copyright Information section for details of this license and what reuse is permitted If your intended use exceeds what is permitted by the license or if you are unable to locate the licence and reuse information please contact the Rights and Permissions team
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