Capturing Complex Behavior in Josephson Traveling-Wave Parametric Amplifiers

被引：29
|
作者：
Dixon, T. [1 ,2 ]
Dunstan, J. W. [2 ]
Long, G. B. [1 ]
Williams, J. M. [1 ]
Meeson, P. J. [2 ]
Shelly, C. D. [1 ,3 ]
机构：
[1] Natl Phys Lab, Hampton Rd, Teddington TWJJ 0LW, Middx, England
[2] Royal Holloway Univ London, Egham TW20 0EX, Surrey, England
[3] Oxford Quantum Circuits, Thames Valley Sci Pk, Reading RG2 9LH, Berks, England
来源：
PHYSICAL REVIEW APPLIED | 2020年 / 14卷 / 03期
关键词：
Parametric amplifiers;
D O I：
10.1103/PhysRevApplied.14.034058
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We present an analysis of wave mixing in the recently developed Josephson traveling-wave parametric amplifier (JTWPA). Circuit simulations performed using WRSPICE show the full behavior of the JTWPA, allowing propagation of all tones. The coupled mode equations (CMEs) containing only pump, signal, and idler propagation are shown to be insufficient to completely capture complex mixing behavior in the JTWPA. Extension of the CMEs through additional state vectors in the analytic solutions allows closer agreement with WRSPICE. We consider an ordered framework for the systematic inclusion of extended eigenmodes and make a comparison with WRSPICE at each step. The agreement between the two methods validates both approaches and provides insight into the operation of the JTWPA.
引用
下载
收藏
页数：16
相关论文
共 50 条
12345