For the description of system-bath coupling, coupling operators have to be introduced. However, since for real-world problems those are most often not known, one typically uses simple model assumptions. You can find the complete list of classdef's by looking into the corresponding package folder.
sbc.taylor | Taylor series expansion of potential. Works for coupled channels and supports also multidimensional grids. |
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hshift | Horizontal shift: reference position for Taylor expansion A vector containing the values for each degree of freedom |
vshift | Vertical shift: constant energy offset |
coeffs | Taylor series coefficients (i.e. derivatives) have to be given as a matrix. The number of rows gives the order after which the Taylor series is truncated. The number of columns must equal the number of dimensions of the grid. |
Blog: 2019/02/version-530-released-30-may-2017
Wiki: Reference.Variables.hamilt