Collapse and Revival of Supercurrent in Mesoscopic Josephson Junctions in the Presence of Nonclassical Electromagnetic Field

Chin. Phys. Lett.

1997, Vol. 14

Issue (12): 905-907 DOI:

Original Articles

Collapse and Revival of Supercurrent in Mesoscopic Josephson Junctions in the Presence of Nonclassical Electromagnetic Field

SHAO Bin;ZOU Jian;XING Xiu-san

Department of Applied Physics, Beijing Institute of Technology, Beijing 100081

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SHAO Bin, ZOU Jian, XING Xiu-san 1997 Chin. Phys. Lett. 14 905-907

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Abstract 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.

Keywords: 42.50.Lc 74.50.+r

Published: 01 December 1997

PACS:	42.50.Lc	(Quantum fluctuations, quantum noise, and quantum jumps)
	74.50.+r	(Tunneling phenomena; Josephson effects)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1997/V14/I12/0905

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