中国物理B ›› 1999, Vol. 8 ›› Issue (5): 368-373.doi: 10.1088/1004-423X/8/5/008

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REDUCED QUANTUM FLUCTUATION IN MESOSCOPIC JOSEPHSON JUNCTION WITH SCHR?DINGER-CAT STATE FIELD

邵彬, 邹健   

  1. Department of Applied Physics, Beijing Institute of Technology, Beijing 100081, China
  • 收稿日期:1998-11-27 出版日期:1999-05-15 发布日期:1999-05-20

REDUCED QUANTUM FLUCTUATION IN MESOSCOPIC JOSEPHSON JUNCTION WITH SCHR$\ddot{\rm O}$DINGER-CAT STATE FIELD

Shao Bin (邵彬), Zou Jian (邹健)   

  1. Department of Applied Physics, Beijing Institute of Technology, Beijing 100081, China
  • Received:1998-11-27 Online:1999-05-15 Published:1999-05-20

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摘要： We consider the system of a mesoscopic Josephson junction interacting with a quantized radiation field and investigate the fluctuation properties of the junction variables with time evolution. Our results show that, due to the quantum entanglement between the field and junction, the mesoscopic Josephson junction subsystem can exhibit squeezing behavior.

Abstract: We consider the system of a mesoscopic Josephson junction interacting with a quantized radiation field and investigate the fluctuation properties of the junction variables with time evolution. Our results show that, due to the quantum entanglement between the field and junction, the mesoscopic Josephson junction subsystem can exhibit squeezing behavior.

中图分类号:  (Entanglement and quantum nonlocality)

  • 03.65.Ud
42.50.Dv (Quantum state engineering and measurements) 85.25.Cp (Josephson devices)