Disorder-induced superconductor to insulator transition and finite phase stiffness in two-dimensional phase-glass models

  title={Disorder-induced superconductor to insulator transition and finite phase stiffness in two-dimensional phase-glass models},
  author={Enzo Granato},
  journal={Physical Review B},
  • E. Granato
  • Published 29 October 2020
  • Physics
  • Physical Review B
We study numerically the superconductor to insulator transition in two-dimensional phase-glass (or chiral-glass) models with varying degree of disorder. These models describe the effects of gauge disorder in superconductors due to random negative Josephson-junction couplings, or $\pi$ junctions. Two different models are considered, with binary and Gaussian distribution of quenched disorder, having nonzero mean. Monte Carlo simulations in the path-integral representation are used to determine… 
1 Citations
Magnetic-field frustration and chiral-glass to insulator transition in superconducting arrays with random $$\pi $$ junctions
  • E. Granato
  • Physics
    The European Physical Journal B
  • 2021
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.


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