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

We report on the implementation of a near-quantum-limited, traveling-wave parametric amplifier that uses three-wave mixing (3WM). To favor amplification by 3WM, we use superconducting nonlinear asymmetric inductive element (SNAIL) loops, biased with a dc magnetic flux. In addition, we equip the devi...

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Bibliographic Details
Published in:Applied physics letters 2023-01, Vol.122 (5)
Main Authors: Fadavi Roudsari, Anita, Shiri, Daryoush, Renberg Nilsson, Hampus, Tancredi, Giovanna, Osman, Amr, Svensson, Ida-Maria, Kudra, Marina, Rommel, Marcus, Bylander, Jonas, Shumeiko, Vitaly, Delsing, Per
Format: Article
Language:English
Subjects:
Amplification
Applied physics
Circuits
Condensed Matter Physics
Den kondenserade materiens fysik
Electrical Engineering, Electronic Engineering, Information Engineering
Elektroteknik och elektronik
Higher harmonics
Magnetic flux
Materials Engineering
Materialteknik
Nano Technology
Nanofabrication
Nanoteknik
parametric amplifier
Parametric amplifiers
Periodic variations
Qantum Computing
Snails
superconducting circuits
thin superconducting films
Three-wave mixing
Traveling waves
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Summary:We report on the implementation of a near-quantum-limited, traveling-wave parametric amplifier that uses three-wave mixing (3WM). To favor amplification by 3WM, we use 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 stopband 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.
ISSN:0003-6951
1077-3118
1077-3118
DOI:10.1063/5.0127690