Representing structural information of helical charge distributions in cylindrical coordinates
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. © 1997 The American Physical Society.
Hochberg, D; Edwards, G; Kephart, TW
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