تقرير
Theory of high-power excitation spectra of rf-SQUID
| العنوان: | Theory of high-power excitation spectra of rf-SQUID |
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| المؤلفون: | Dmytruk, Olesia, Rodriguez, R. H., Girit, Ç. Ö., Schiró, Marco |
| سنة النشر: | 2021 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | We discuss the theory of linear and non-linear spectroscopy of an rf-SQUID coupled to a Josephson spectrometer. Recent experimental measurements on this system have shown a strongly non-linear absorption lineshape, whose current peak maximum undergoes a forward-backward bending transition depending on the value of the rf-SQUID phase. We show that this transition can be qualitatively understood by mapping the dynamics of the driven rf-SQUID onto a generalized Duffing oscillator, with tunable drive and non-linearity, undergoing a bifurcation. Finally we show that in order to quantitatively reproduce the experimental data reported in arXiv:2106.02632, it is crucial to include the feedback from the load-line, leading to an additional source of non-linearity. Comment: 13 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.104.214508 |
| URL الوصول: | http://arxiv.org/abs/2107.07971 |
| رقم الأكسشن: | edsarx.2107.07971 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.104.214508 |
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