Coherent dynamics and decoherence in a superconducting weak link

We demonstrate coherent dynamics of quantized magnetic fluxes in a superconducting loop with a weak link, a nanobridge patterned from the same thin NbN film as the loop. The bridge is a short, rounded shape constriction, close to 10 nm long and 20–30 nm wide, having minimal width at its center. It s...

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Veröffentlicht in:	Physical review. B 2016-11, Vol.94 (18), Article 180508
Hauptverfasser:	Peltonen, J. T., Peng, Z. H., Korneeva, Yu. P., Voronov, B. M., Korneev, A. A., Semenov, A. V., Gol'tsman, G. N., Tsai, J. S., Astafiev, O. V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Coherence Inductance Magnetic flux Niobium nitride Quantum theory Superconductivity Time domain analysis Variations
Online-Zugang:	Volltext
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