Comment on "Thermal propagation in two-dimensional Josephson junction arrays"

Details Comment on "Thermal propagation in two-dimensional Josephson junction arrays" Comment on "Thermal propagation in two-dimensional Josephson junction arrays"

2009-02-21

arxiv.org/abs/0902.3736v1

Physics

Condensed Matter

Superconductivity

Submitted to Physical Review B

Scientific paper

In a recent paper, Filatrella et al. [Phys. Rev. B 75, 54510 (2007)] report results of numerical calculations of energy barriers for flux quanta propagation in two-dimensional arrays of Josephson junctions with finite self and mutual inductances. To avoid complex numerical calculations, they use an approximated inductance model to address the effects of the mutual couplings. Using a full inductance matrix model, we show that this approximated model cannot be used to calculate the energy barrier of interacting vortices. The authors' method of comparison between numerical data and theoretical predictions is also discussed.

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