تقرير
Investigating pump harmonics generation in a SNAIL-based Traveling Wave Parametric Amplifier
| العنوان: | Investigating pump harmonics generation in a SNAIL-based Traveling Wave Parametric Amplifier |
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| المؤلفون: | Levochkina, A. Yu., Ahmad, H. G., Mastrovito, P., Chatterjee, I., Serpico, G., Di Palma, L., Ferroiuolo, R., Satariano, R., Darvehi, P., Ranadive, A., Cappelli, G., Gal, G. Le, Planat, L., Montemurro, D., Massarotti, D., Tafuri, F., Roch, N., Pepe, G. P., Esposito, M. |
| سنة النشر: | 2024 |
| المجموعة: | Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics |
| الوصف: | Traveling Wave Parametric Amplifiers (TWPAs) are extensively employed in experiments involving weak microwave signals for their highly desirable quantum-limited and broadband characteristics. However, TWPAs' broadband nature comes with the disadvantage of admitting the activation of spurious nonlinear processes, such as harmonics generation, that can potentially degrade amplification performance. Here we experimentally investigate a Josephson TWPA device with SNAIL (Superconducting Nonlinear Asymmetric Inductive Element)-based unit cells focusing on the amplification behaviour along with the generation of second and third harmonics of the pump. By comparing experimental results with transient numerical simulations, we demonstrate the influence of Josephson junctions' fabrication imperfections on the occurrence of harmonics and on the gain behaviour. Comment: typos fixed |
| نوع الوثيقة: | Working Paper |
| الوصول الحر: | http://arxiv.org/abs/2405.20096Test |
| رقم الانضمام: | edsarx.2405.20096 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |