public class NormalModesFromFile
Provides normal-mode information as obtained from a file read at
construction. File is expected to contain information about eigenvectors
and eigenvalues of pair correlations. Reciprocal of eigenvalues gives frequencies
defined by this implementation.
Returns an array giving the frequencies (squared) corresponding to the normal-mode
motions. First index indicates the wave vector, and second index indicates the
eigenvector. Length of second index is coordinateDim.
Set the fudge factor applied to frequencies. The squared-frequencies returned
by getOmegaSquared will be the nominal values divided by the given
fudge factor. Thus a smaller value of this fudge factor will make for "tighter"
harmonic springs, corresponding to to smaller deviation from the lattice sites.