Bound states in the continuum in zigzag quantum wire enforced by a finger gate

Описание

Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1134/S0021364014210139

Аннотация: We consider electron transport in a zigzag quantum wire by the effect of finger gate potential. Using a non-Hermitian effective Hamiltonian, we calculate resonance positions and widths to show that the resonance widths are easily governed by the gate potential. In particular, the resonance width can be enforced to be equal to zero,Показать полностьюwhich leads to an electron localization with the Fermi energy embedded in the propagation band of the wire, i.e., the bound state in the continuum (BSC). We show that, for positive values of the potential, a zigzag wire becomes a Fabry-Perot resonator to give rise to BSC too.

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Издание

Журнал: JETP LETTERS

Выпуск журнала: Vol. 100, Is. 9

Номера страниц: 585-590

ISSN журнала: 00213640

Место издания: NEW YORK

Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER

Авторы

  • Sadreev A.F. (Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences)
  • Pilipchuk A.S. (Siberian Federal University)

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