NDLI: Quantum Phase in Nanoscopic Superconductors

Content Provider	Springer Nature Link
Author	Gedik, Z.
Copyright Year	2003
Abstract	Using the pseudospin representation and the SU(2) phase operators we introduce a complex parameter to characterize both infinite and finite superconducting systems. While in the bulk limit the parameter becomes identical to the conventional order parameter, in the nanoscopic limit its modulus reduces to the number parity effect parameter and its phase takes discrete values. We evaluate the Josephson coupling energy and show that in bulk superconductor it reproduces the conventional expression and in the nanoscopic limit it leads to quantized Josephson effect. Finally, we study the phase flow or dual Josephson effect in a superconductor with fixed number of electrons.
Starting Page	913
Ending Page	917
Page Count	5
File Format	PDF
ISSN	08961107
Journal	Journal of Superconductivity and Novel Magnetism
Volume Number	16
Issue Number	6
e-ISSN	15729605
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2003-01-01
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Characterization and Evaluation Materials Condensed Matter Solid State Physics and Spectroscopy
Content Type	Text
Resource Type	Article
Subject	3100/3101 Condensed Matter Physics Electronic, Optical and Magnetic Materials

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Quantum Phase in Nanoscopic Superconductors