Quasiparticle effects in quantum-induced transitions in superconductors
Jungzae Choi, Jorge V. José
DOI 10.1103/PhysRevLett.62.1904 · Physical Review Letters
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Abstract
The effects of quasi-particle tunneling in the long-range properties of an array of ultrasmall Josephson junctions, with a transverse magnetic field, is studied in two dimensions via extensive quantum Monte Carlo simulations. It is found that quasi-particle tunneling suppresses the zero-point quantum-fluctuation effects in the arrays, as well as triggering a discontinuous transition between the low-temperature metastable phase to the stable high-temperature superconducting phase.
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