Three-wave-mixing quantum-limited kinetic inductance parametric amplifier operating at 6 T near 1 K

被引：13

作者：

Frasca, S. ^{[1
,2
]}

Roy, C. ^{[1
,2
]}

Beaulieu, G. ^{[1
,2
]}

Scarlino, P. ^{[1
,2
]}

机构：

[1] Swiss Fed Inst Technol EPFL, Inst Phys, CH-1015 Lausanne, Switzerland

[2] Ecole Polytech Fed Lausanne, Ctr Quantum Sci & Engn, CH-1015 Lausanne, Switzerland

来源：

PHYSICAL REVIEW APPLIED | 2024年 / 21卷 / 02期

基金：

瑞士国家科学基金会;

关键词：

PENETRATION DEPTH; NOISE; AMPLIFICATION; BAND;

D O I：

10.1103/PhysRevApplied.21.024011

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Parametric amplifiers play a crucial role in modern quantum technology by enabling the enhancement of weak signals with minimal added noise. Traditionally, Josephson junctions have been the primary choice for constructing parametric amplifiers. Nevertheless, high -kinetic inductance thin films have emerged as viable alternatives to engineer the necessary nonlinearity. In this work, we introduce and characterize a kinetic inductance parametric amplifier (KIPA) built using high -quality NbN superconducting thin films. The KIPA addresses some of the limitations of traditional Josephson -based parametric amplifiers, excelling in dynamic range, operational temperature, and magnetic field resilience. We demonstrate a quantum -limited amplification (>20 dB) with a 20 -MHz gain -bandwidth product, operational at fields up to 6 T and temperatures as high as 850 mK. Harnessing kinetic inductance in NbN thin films, the KIPA emerges as a robust solution for quantum signal amplification, enhancing research possibilities in quantum information processing and low -temperature quantum experiments. Its magnetic field compatibility and quantum -limited performance at high temperatures make it an invaluable tool, promising advancements in quantum research.

引用

页数：19

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