Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2004-08-09
Physical Review E 55 (1997) 6171
Physics
Condensed Matter
Other Condensed Matter
Scientific paper
10.1103/PhysRevE.55.6171
The aim of this study is to analyze the properties of harmonic fields in the vicinity of rough boundaries where either a constant potential or a zero flux is imposed, while a constant field is prescribed at an infinite distance from this boundary. We introduce a conformal mapping technique that is tailored to this problem in two dimensions. An efficient algorithm is introduced to compute the conformal map for arbitrarily chosen boundaries. Harmonic fields can then simply be read from the conformal map. We discuss applications to "equivalent" smooth interfaces. We study the correlations between the topography and the field at the surface. Finally we apply the conformal map to the computation of inhomogeneous harmonic fields such as the derivation of Green function for localized flux on the surface of a rough boundary.
Roux Stephane
Vandembroucq Damien
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