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This article is cited in 7 scientific papers (total in 7 papers)
CONDENSED MATTER
Bound states in the continuum in zigzag quantum wire enforced by a finger gate
A. F. Sadreeva, A. S. Pilipchukba a L. V. Kirensky Institute of Physics, Siberian Branch of the Russian Academy of Sciences, Krasnoyarsk
b Siberian Federal University, Krasnoyarsk
Abstract:
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, which 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.
Received: 20.08.2014 Revised: 30.09.2014
Citation:
A. F. Sadreev, A. S. Pilipchuk, “Bound states in the continuum in zigzag quantum wire enforced by a finger gate”, Pis'ma v Zh. Èksper. Teoret. Fiz., 100:9 (2014), 664–669; JETP Letters, 100:9 (2014), 585–590
Linking options:
https://www.mathnet.ru/eng/jetpl4459 https://www.mathnet.ru/eng/jetpl/v100/i9/p664
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Abstract page: | 220 | Full-text PDF : | 84 | References: | 39 | First page: | 18 |
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