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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

  • Physica C: Superconductivity

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

    Elsevier Science BV

Codes

  • NII Article ID (NAID)
    120002737837
  • NII NACSIS-CAT ID (NCID)
    AA11461984
  • Text Lang
    ENG
  • Article Type
    journal article
  • ISSN
    0921-4534
  • Data Source
    IR 
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