期刊
APPLIED PHYSICS LETTERS
卷 99, 期 26, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3672000
关键词
-
资金
- US government, Office of the Director of National Intelligence (ODNI)
- NIST Quantum Information initiative
We developed transmon qubits based on epitaxial tunnel junctions and interdigitated capacitors. This multileveled qubit, patterned by use of all-optical lithography, is a step towards scalable qubits with a high integration density. The relaxation time T-1 is 0.72-0.86 mu s and the ensemble dephasing time T-2* is slightly larger than T-1. The dephasing time T-2 (1.36 mu s) is nearly energy-relaxation-limited. Qubit spectroscopy yields weaker level splitting than observed in qubits with amorphous barriers in equivalent-size junctions. The qubit's inferred microwave loss closely matches the weighted losses of the individual elements (junction, wiring dielectric, and interdigitated capacitor), determined by independent resonator measurements. (C) 2011 American Institute of Physics. [doi:10.1063/1.3672000]
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据