Fleeting fluctuations in superconductivity disappear close to transition temperature

Fleeting fluctuations in superconductivity disappear close to transition temperature: "These fluctuations are something like small islands or droplets of superconductivity, within which the electron pairs are coherent, which pop up here and there and live for a while and then evaporate to pop up again elsewhere," Bozovic said. "Such fluctuations occur in every superconductor," he explained, "but in conventional ones only very, very close to Tc — the transition is in fact very sharp."