Vectorlike representation of one-dimensional scattering
نویسندگان
چکیده
We present a self-contained discussion of the use of the transfer-matrix formalism to study onedimensional scattering. We elaborate on the geometrical interpretation of this transfer matrix as a conformal mapping on the unit disk. By generalizing to the unit disk the idea of turns, introduced by Hamilton to represent rotations on the sphere, we develop a method to represent transfer matrices by hyperbolic turns, which can be composed by a simple parallelogramlike rule.
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