Coherent dynamics and decoherence in a superconducting weak link
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 …