تقرير
Frequency-tunable Kerr-free three-wave mixing with a gradiometric SNAIL
| العنوان: | Frequency-tunable Kerr-free three-wave mixing with a gradiometric SNAIL |
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| المؤلفون: | Miano, A., Liu, G., Sivak, V. V., Frattini, N. E., Joshi, V. R., Dai, W., Frunzio, L., Devoret, M. H. |
| المصدر: | Appl. Phys. Lett. 120, 184002 (2022) |
| سنة النشر: | 2021 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity, Quantum Physics |
| الوصف: | Three-wave mixing is a key process in superconducting quantum information processing, being involved in quantum-limited amplification and parametric coupling between superconducting cavities. These operations can be implemented by SNAIL-based devices that present a Kerr-free flux-bias point where unwanted parasitic effects such as Stark shift are suppressed. However, with a single flux-bias parameter, these circuits can only host one Kerr-free point, limiting the range of their applications. In this Letter, we demonstrate how to overcome this constraint with a gradiometric SNAIL, a doubly-flux biased superconducting circuit for which both effective inductance and Kerr coefficient can be independently tuned. Experimental data show the capability of the gradiometric SNAIL to suppress Kerr effect in a three-wave mixing parametric amplifier over a continuum of flux bias points corresponding to a 1.7 GHz range of operating frequencies. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1063/5.0083350 |
| URL الوصول: | http://arxiv.org/abs/2112.09785 |
| رقم الأكسشن: | edsarx.2112.09785 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1063/5.0083350 |
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