Collapse and revival of supercurrent in mesoscopic Josephson junction

Gert‐Ludwig Ingold, Hermann Grabert

P. Silvestrini, B. Ruggiero, Carmine Granata +2 more

P. Silvestrini, B. Ruggiero, C. Granata +1 more

You-Bang Zhan, Zhou Ping, Hao Fu

Dynamic evolution of a mesoscopic Josephson junction (MJJ) interacting with excited even and odd coherent states is studied. It is shown that the supercurrent in MJJ exhibits both collapse and revival (CR) phenomenon and squeezing effect. It is also shown that the CR and squeezing of supercurrent are related to degree of excitation and average photon number.

Jian Zou, Bin Shao

Shao Bin, Zou Jian, Xing Xiu-San

Dynamic behavior of the supercurrent in a mesoscopic Josephson junction in the presence of a nonclassical electromagnetic field is investigated. It is shown that for the squeezed state the time evolution of the supercurrent can exhibit quantum collapse and revival phenomenon, while for the coherent state the phenomenon does not occur.