このエントリーをはてなブックマークに追加
ID 30793
file
creator
Kanayama, Takafumi
Nakajo, Takaya
Fujii, Toshiyuki
subject
SQUID
Fluxon
Double sine-Gordon equation
NDC
Physics
abstract
We propose a one-dimensional array of superconducting quantum interference devices (SQUIDs) composed of three asymmetrically positioned Josephson junctions to realize a discrete double sine-Gordon (DSG) model. Two fluxons in this SQUID array attract each other and form bound states with internal oscillation modes. We conduct numerical simulations of a discrete DSG equation, and show that the period of the internal oscillation of a moving fluxon pair exhibits relativistic time dilation except near the speed of light. We also show that driving with a pure alternating current causes progressive motion of the bound fluxon pair even in the presence of dissipation.
journal title
Physica C: Superconductivity
volume
Volume 470
issue
Issue 19
start page
832
end page
834
date of issued
2010-10-01
publisher
Elsevier Science BV
issn
0921-4534
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
author
rights
Copyright (c) 2010 Elsevier B.V.
relation url
department
Graduate School of Advanced Sciences of Matter