This article is cited in 2 scientific papers (total in 2 papers)
Semiclassical asymptotic approximations and the density of states for the two-dimensional radially symmetric Schrödinger and Dirac equations in tunnel microscopy problems
Abstract:
We consider the two-dimensional stationary Schrödinger and Dirac equations in the case of radial symmetry. A radially symmetric potential simulates the tip of a scanning tunneling microscope. We construct semiclassical asymptotic forms for generalized eigenfunctions and study the local density of states that corresponds to the microscope measurements. We show that in the case of the Dirac equation, the tip distorts the measured density of states for all energies.
Keywords:
axially symmetric two-dimensional Schrödinger operator, axially symmetric two-dimensional Dirac operator, generalized eigenfunction, semiclassical approximation, density of states, tunnel microscopy.
This research was supported by the DFG (Grant
No. SFB 647/3), the Russian Foundation for Basic Research (Grant
No. 14-01-00521), and the Russian Federation (Act 211, Contract
No. 02.A03.21.0006).
Citation:
J. Brüning, S. Yu. Dobrokhotov, M. I. Katsnel'son, D. S. Minenkov, “Semiclassical asymptotic approximations and the density of states for the two-dimensional radially symmetric Schrödinger and Dirac equations in tunnel microscopy problems”, TMF, 186:3 (2016), 386–400; Theoret. and Math. Phys., 186:3 (2016), 333–345
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Linking options:
https://www.mathnet.ru/eng/tmf8987
https://doi.org/10.4213/tmf8987
https://www.mathnet.ru/eng/tmf/v186/i3/p386
This publication is cited in the following 2 articles:
V. V. Rykhlov, “Efficient semiclassical approximation for bound states in graphene in magnetic field with a small trigonal warping correction”, Math. Notes, 116:6 (2024), 1339–1349
A. A. Tolchennikov, “Behavior of the solution of the Klein–Gordon equation with a localized initial condition”, Theoret. and Math. Phys., 199:2 (2019), 761–770