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MATHEMATICS
On a discrete Schrödinger equation for a quantum dot with a nonlocal potential
N. I. Korobeinikova Udmurt State University, ul. Universitetskaya, 1, Izhevsk, 426034, Russia
Abstract:
The paper considers the discrete Schrödinger equation. This is the characteristic equation for a Schrödinger operator of a certain type. It corresponds to a mathematical model that describes nanoscale devices that regulate electron transport using, for example, the Aharonov–Bohm effect. We study the general spectral properties of the operator, find eigenvalues and resonances, and investigate the scattering problem. In particular, conditions for complete transmission (i.e., transmission with probability equal to one) are found, and the possibility of Fano resonance is indicated.
Keywords:
discrete Schrödinger operator, resonance, eigenvalue, discrete Lippmann–Schwinger equation, Fano resonance
Received: 01.10.2024 Accepted: 02.11.2024
Citation:
N. I. Korobeinikova, “On a discrete Schrödinger equation for a quantum dot with a nonlocal potential”, Izv. IMI UdGU, 64 (2024), 48–59
Linking options:
https://www.mathnet.ru/eng/iimi469 https://www.mathnet.ru/eng/iimi/v64/p48
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Abstract page: | 116 | Full-text PDF : | 52 | References: | 21 |
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