Observation of cnoidal wave localization in nonlinear topolectric circuits
نویسندگان
چکیده
We observe a localized cnoidal (LCn) state in an electric circuit network. Its formation derives from the interplay of non-linearity and topology inherent to Su-Schrieffer-Heeger (SSH) chain inductors. Varicap diodes act as voltage-dependent capacitors, create non-linear on-site potential. For sinusoidal voltage excitation around midgap frequency, we show that response SSH follows Korteweg-de Vries equation. The topological boundary which relates impedance peak linearized limit is distorted into LCn regime, where eccentricity decreases edge bulk.
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ژورنال
عنوان ژورنال: Physical review research
سال: 2023
ISSN: ['2643-1564']
DOI: https://doi.org/10.1103/physrevresearch.5.l012041