日時: |
2014-04-30 15:00 - 16:00 |
場所: |
研究本館3階セミナールーム322室 |
会議名: |
Quantum graph vertices with minimal number of passbands |
連絡先: |
森田 辰弥、moritata-AT-post.kek.jp |
講演者: |
Dr. Poghosyan Sergey (高知工科大学) |
講演言語: |
英語 |
アブストラクト: |
We study a set of scattering matrices of quantum graphs containing minimal number of pass- bands, i.e., maximal number of zero elements. The cases of even and odd vertex degree are considered. Using a solution of inverse scattering problem, we reconstruct boundary conditions of scale-invariant vertex couplings. Potential-controlled universal flat filtering properties are found for considered types of vertex couplings. Obtained boundary conditions are approximated by simple graphs carrying only N4 potentials and inner magnetic field. |
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