Representing Structural Information of Helical Charge Distributions in Cylindrical Coordinates
David Hochberg, Thomas W. Kephart, Glenn Edwards
Abstract
Structural information in the local electric field produced by helical charge distributions, such as dissolved DNA, is revealed in a straightforward manner employing cylindrical coordinates. Comparison of structure factors derived in terms of cylindrical and helical coordinates is made. A simple coordinate transformation serves to relate the Green function in cylindrical and helical coordinates. We also compare the electric field on the central axis of a single helix as calculated in both systems.
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