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Quantum Monte Carlo simulation of intervortex potential in superconductors

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 نشر من قبل Arata Yamamoto
 تاريخ النشر 2020
  مجال البحث فيزياء
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 تأليف Arata Yamamoto




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We investigate the interaction potential of superconducting vortices at the full quantum level. We formulate the interaction potential in a constrained path integral and calculate it by the quantum Monte Carlo simulation. The vortex-vortex potential is attractive (type-I), repulsive (type-II), and flat (critical) depending on a coupling constant. The vortex-antivortex potential also depends on the coupling constant at long range but is always attractive at short range.



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