Quantum superposition of two coherent states in a mesoscopic Josephson junction

Authors
Zou, J Shao, B
Citation
J. Zou et B. Shao, Quantum superposition of two coherent states in a mesoscopic Josephson junction, COMM TH PHY, 33(2), 2000, pp. 309-312
Citations number
23
Categorie Soggetti
Physics
Journal title
COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN journal
02536102 → ACNP
Volume
33
Issue
2
Year of publication
2000
Pages
309 - 312
Database
ISI
SICI code
0253-6102(20000315)33:2<309:QSOTCS>2.0.ZU;2-O
Abstract
We study a mesoscopic Josephson junction in a circular superconducting ring which encloses a magneto static flux. It is shown that with the junction b eing initially prepared in vacuum state, the state of the junction can evol ve into a quantum superposition df two coherent states.