Bound fluxon pair in one-dimensional SQUID array

• Nishida, Munehiro

• Kanayama, Takafumi

• Nakajo, Takaya

• Fujii, Toshiyuki

• Hatakenaka, Noriyuki

抄録

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.

収録刊行物

• Physica C: Superconductivity

  Physica C: Superconductivity 470 (19), 832-834, 2010-10-01

  Elsevier Science BV

キーワード

• SQUID
• Fluxon
• Double sine-Gordon equation

詳細情報

• CRID: 1050577740962695424
• NII論文ID: 120002737837
• NII書誌ID: AA11461984
• Web Site: http://ir.lib.hiroshima-u.ac.jp/00030793
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
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  • CiNii Articles