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Decomposition of a unit quantum and isolation of a fractional quantum by an externally injected soliton in an ultra-thin superconducting bi-layer film

Authors :
H. Yamamori
Yasumoto Tanaka
T. Nishio
Shunichi Arisawa
Takashi Yanagisawa
Source :
Physica C: Superconductivity and its Applications. 538:12-19
Publication Year :
2017
Publisher :
Elsevier BV, 2017.

Abstract

An ultra-thin superconducting bi-layer is an artificial multi-component superconductor in which the magnetic flux can be fractionally quantized. The fractionally quantized state is energetically unfavorable, so it is difficult to realize experimentally. We propose a new method to create fractional quantized states by the reaction of a unit quantized state with an externally injected inter-layer phase-difference soliton. Simulation shows that the unit quantized state splits the soliton and the soliton fragments produce fractional quanta by dissociation of the unit quantum.

Details

ISSN :
09214534
Volume :
538
Database :
OpenAIRE
Journal :
Physica C: Superconductivity and its Applications
Accession number :
edsair.doi...........ddd909c67ba32c1622df9be9725e96e4
Full Text :
https://doi.org/10.1016/j.physc.2017.04.009