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Superconducting Qubits

Three-wave mixing traveling-wave parametric amplifier with periodic variation of the circuit parameters

arXiv
Authors: Anita Fadavi Roudsari, Daryoush Shiri, Hampus Renberg Nilsson, Giovanna Tancredi, Amr Osman, Ida-Maria Svensson, Marina Kudra, Marcus Rommel, Jonas Bylander, Vitaly Shumeiko, Per Delsing

Year

2022

Paper ID

59291

Status

Preprint

Abstract Read

~2 min

Abstract Words

102

Citations

N/A

Abstract

We report the implementation of a near-quantum-limited, traveling-wave parametric amplifier that uses three-wave mixing (3WM). To favor amplification by 3WM, we use the superconducting nonlinear asymmetric inductive element (SNAIL) loops, biased with a dc magnetic flux. In addition, we equip the device with dispersion engineering features to create a stop-band at the second harmonic of the pump and suppress the propagation of the higher harmonics that otherwise degrade the amplification. With a chain of 440 SNAILs, the amplifier provides up to 20 dB gain and a 3-dB bandwidth of 1 GHz. The added noise by the amplifier is found to be less than one photon.

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  • This paper contributes to the Superconducting Qubits research area in the Quantum Articles archive.
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  • We report the implementation of a near-quantum-limited, traveling-wave parametric amplifier that uses three-wave mixing (3WM).

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2209.07551 [2] arXiv https://arxiv.org/abs/2209.07551 [3] Publisher https://arxiv.org/abs/2209.07551

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