期刊
APPLIED PHYSICS LETTERS
卷 109, 期 4, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4959241
关键词
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资金
- U.S. Army Research Office [W911NF-14-1-0011]
- NSF [DGE-1122492, PHY1309996]
- Yale Science Scholars Fellowship
- Alexander von Humboldt Foundation
Numerous loss mechanisms can limit coherence and scalability of planar and 3D-based circuit quantum electrodynamics (cQED) devices, particularly due to their packaging. The low loss and natural isolation of 3D enclosures make them good candidates for coherent scaling. We introduce a coaxial transmission line device architecture with coherence similar to traditional 3D cQED systems. Measurements demonstrate well-controlled external and on-chip couplings, a spectrum absent of cross-talk or spurious modes, and excellent resonator and qubit lifetimes. We integrate a resonator-qubit system in this architecture with a seamless 3D cavity, and separately pattern a qubit, readout resonator, Purcell filter, and high-Q stripline resonator on a single chip. Device coherence and its ease of integration make this a promising tool for complex experiments. Published by AIP Publishing.
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