Yuki Nagai, K. Tanaka, Nobuhiko Hayashi
We propose a numerical method for studying mesoscopic superconductors in
terms of the quasiclassical theory of superconductivity. Our method is free
from ambiguity in initial values for a system that does not have a bulk
solution, and allows one to uniquely determine selfconsistent solutions of the
Eilenberger equation which are independent of initial conditions for
quasiclassical trajectories. To demonstrate the efficiency of our method, we
calculate the local density of states in a circular d-wave island containing a
single vortex. We find that the so-called vortex shadow effect strongly depends
on energy in a circular mesoscopic island.
View original:
http://arxiv.org/abs/1202.2661
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