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On the electron scattering on the one-dimensional complexes: the vertex amplitudes method

129   0   0.0 ( 0 )
 Added by Anton Dolgikh V
 Publication date 2010
  fields Physics
and research's language is English




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The problem of electron scattering on the one-dimensional complexes is considered. We propose a novel theoretical approach to solution of the transport problem for a quantum graph. In the frame of the developed approach the solution of the transport problem is equivalent to the solution of a linear system of equations for the emph{vertex amplitudes} $mathbf{Psi}$. All major properties, such as transmission and reflection amplitudes, wave function on the graph, probability current, are expressed in terms of one $mathbf{Gamma}$-matrix that determines the transport through the graph. The transmission resonances are analyzed in detail and comparative analysis with known results is carried out.



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