Magnetic-field frustration and chiral-glass to insulator transition in superconducting arrays with random $$\pi $$ junctions

  title={Magnetic-field frustration and chiral-glass to insulator transition in superconducting arrays with random \$\$\pi \$\$ junctions},
  author={Enzo Granato},
  journal={The European Physical Journal B},
  • E. Granato
  • Published 1 July 2021
  • Physics
  • The European Physical Journal B
We study the effects of random $$\pi $$ Josephson junctions and applied magnetic field on the quantum phase transitions of superconducting arrays, described by a two-dimensional phase-glass model. The zero-temperature phase diagram and critical behavior are obtained from path-integral Monte Carlo simulations. A superconducting chiral-glass phase occurs for sufficiently large disorder resulting from frustration effects of the $$\pi $$ junctions. Unlike the superconductor–insulator transition… 
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