A Quantum Model for a Graphene Josephson Junction Parametric Amplifier for Quantum-Noise-Limited Microwave Amplification

被引：0

作者：

Yuan, Yongjie ^{[1
]}

Asirim, Ozum Emre ^{[1
]}

Haider, Michael ^{[1
]}

Jirauschek, Christian ^{[1
]}

机构：

[1] Tech Univ Munich, TUM Sch Computat Informat & Technol, Munich, Germany

来源：

2024 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM, IMS 2024 | 2024年

关键词：

Graphene Josephson junction; Josephson parametric amplifier (JPA); superconducting circuits;

D O I：

10.1109/IMS40175.2024.10600242

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We present a quantized theoretical framework for the description of a reflection-type resonant microwave parametric amplifier using graphene Josephson junctions. We focus on the regime of interest for parametric amplification and apply a coefficient method combined with a two-photon loss model to analyze the quantum-noise-limited microwave amplification process. Based on the constructed quantum model, we investigate the amplification performance by predicting the reflection magnitude over the narrow gain bandwidth and compare our results to recent experimental data from the literature. The theoretical and experimental reflection magnitudes are in good agreement.

引用

页码：749 / 752

页数：4

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