Bound fluxon pair in one-dimensional SQUID array
Physica C: Superconductivity Volume 470 Issue 19
Page 832-834
published_at 2010-10-01
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| File | |
| Title ( eng ) |
Bound fluxon pair in one-dimensional SQUID array
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| Creator |
Kanayama Takafumi
Nakajo Takaya
Fujii Toshiyuki
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| Source Title |
Physica C: Superconductivity
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| Volume | 470 |
| Issue | 19 |
| Start Page | 832 |
| End Page | 834 |
| 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.
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| Keywords |
SQUID
Fluxon
Double sine-Gordon equation
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| NDC |
Physics [ 420 ]
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| Language |
eng
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| Resource Type | journal article |
| Publisher |
Elsevier Science BV
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| Date of Issued | 2010-10-01 |
| Rights |
Copyright (c) 2010 Elsevier B.V.
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| Publish Type | Author’s Original |
| Access Rights | open access |
| Source Identifier |
[ISSN] 0921-4534
[DOI] 10.1016/j.physc.2010.02.059
[NCID] AA11461984
[DOI] http://dx.doi.org/10.1016/j.physc.2010.02.059
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