Superconducting to normal state phase boundary in arrays of ultrasmall Josephson junctions
arXiv:cond-mat/9407062 · doi:10.1016/0921-4526(94)90100-7
Abstract
We study the competition between Josephson and charging energies in two-dimensional arrays of ultrasmall Josephson junctions, when the mutual capacitance is dominant over the self-capacitance. Our calculations involve a combination of an analytic WKB renormalization group approach plus nonperturbative Quantum Monte Carlo simulations. We consider the zero frustration case in detail and we are able to make a successful comparison between our results and those obtained experimentally.
14 pages + 2 postscript figures, REVTEX. THU-94120