Three-wave mixing traveling-wave parametric amplifier with periodic variation of the circuit parameters
ORAL
Abstract
We report the implementation of a traveling-wave parametric amplifier (TWPA) with magnetically biased SNAIL loops that provide three-wave mixing (3WM). We use the intrinsic dispersion of the chain for phase matching but suppress the generation of the higher harmonics of the pump, the signal, and the idler by adding dispersive features. We achieve this by means of periodic loading to create a stopband at the second harmonic of the pump. With this design, we obtain a gain of up to 20 dB in a TWPA with only 440 LC units, a 3-dB bandwidth of about 1GHz with added noise of less than one photon. Moreover, the stopband allows for adjusting the frequency of the pump over the GHz range [1].
[1] A. Fadavi Roudsari, et. al, arXiv:2209.07551.
[1] A. Fadavi Roudsari, et. al, arXiv:2209.07551.
*The authors acknowledge the use of the Nanofabrication Laboratory (NFL) at Chalmers University of Technology. This research was funded by the Knut and Alice Wallenberg Foundation through the Wallenberg Center for Quantum Technology (WACQT KAW 2021.0009) and by the EU Flagship on Quantum Technology H2020-FETFLAG-2018-03 project 820363 OpenSuperQ.
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Publication: A. Fadavi Roudsari, et. al, arXiv:2209.07551
A. Fadavi Roudsari, et. al, "Three-wave mixing traveling-wave parametric amplifier with periodic variation of the circuit parameters", submitted to Applied Physics letters
Presenters
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Anita F Fadavi Roudsari
- Chalmers University of Technology
- Chalmers Univ of Tech