Escape dynamics in moderately damped Josephson junctions (Review Article)

• Published in: Физика низких температур
• Date: 2012
• Main Authors: Massarotti, D., Longobardi, L., Galletti, L., Stornaiuolo, D., Montemurro, D., Pepe, G., Rotoli, G., Barone, A., Tafuri, F.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2012
• Subjects: Квантовые когерентные эффекты в сверхпроводниках и новые материалы
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/117116
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Escape dynamics in moderately damped Josephson junctions (Review Article) / D. Massarotti, L. Longobardi, L. Galletti, D. Stornaiuolo, D. Montemurro,G. Pepe, G. Rotoli, A. Barone, F. Tafuri // Физика низких температур. — 2012. — Т. 38, № 4. — С. 336–347. — Бібліогр.: 85 назв. — англ.

The Josephson effect is a privileged access to the macroscopic quantum nature of superconductors. We review some ideas and experimental techniques on macroscopic quantum decay phenomena occurring in Josephson structures. The attention is mainly addressed to intermediate levels of dissipation which characterize a large majority of low critical current Josephson devices and are therefore an avoidable consequence of nanotechnology applied more and more to Josephson devices. Phase diffusion phenomena take over thermal activation in some temperature ranges also affecting the transition to macroscopic quantum tunneling, enriching the phase diagram mostly defined by the Josephson energy, the temperature and the level of dissipation.