Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session R07: Quantum Measurement and Sensing II
8:00 AM–11:00 AM,
Thursday, March 5, 2020
Sponsoring Unit: DQI
Chair: Hoi-Kwan Lau, University of Chicago
Abstract: R07.00010 : Near quantum limited Josephson traveling wave amplifiers I, Fabrication and characterization*
Denis M Basko
(Laboratoire de Physique et Modélisation des Millieux Condensés)
In part I, we will present in detail, our simplified aluminum-based two-step fabrication technique for TWPAs with low footprint, and discuss their linear characterization. This technique paves the way for on-chip integration of broadband amplifiers with quantum devices.
In part II, we will present the performance of these amplifiers, exhibiting a large and near quantum limited gain over bandwidth larger than 2GHz; and conclude with a discussion on techniques for mitigating some of the limitations.
 L. Planat et al., arXiv:1907.10162
 L. Planat et al., arXiv:1907.10158
*This work was supported by the ANR CLOUD project No. ANR-16-CE24-0005 and EU Horizon 2020 program(grant no. MSC-754303 and EMP-824109). R.D. and S.L. ack support from the CFM foundation and the 'Investisements d'avenir' (ANR-15-IDEX-02) programs of the French ANR.
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