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Perfect transmission scattering as a PT-symmetric spectral problem
, associated with a reflectionless scattering system, lead to the loss of perfect-transmission energies as the parameters characterizing the scattering potential are varied. On the other hand, the scattering data c...
BE - Teoretická fyzika
- 2011 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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Reflectionless characterization chamber for thermal imaging
The subject of development is reflectionless characterization chamber thermal imaging equipped with an adjustable enforced cooling. The inner surface of the chamber is designed for absorbing radiation in IR spectrum. The measurement is not i...
JA - Elektronika a optoelektronika, elektrotechnika
- 2011 •
- Gfunk
Rok uplatnění
Gfunk - Funkční vzorek
Klein tunneling in carbon nanostructures: A free-particle dynamics in disguise
. Like the supersymmetry associated with second order reflectionless finite-gap...
BE - Teoretická fyzika
- 2011 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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Reflectionless tunneling of infrared radiation through subwavelength slit in a waveguide
A new effect of resonant tunneling of fundamental mode of optical radiation through the subwavelength slit, formed by smoothly shaped narrowing in the waveguide, is examined. An effective energy transfer by evanescent waves is shown to be determined ...
JA - Elektronika a optoelektronika, elektrotechnika
- 2010 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Reflectionless pseudospin-1 Dirac systems via Darboux transformation and flat band solutions
This manuscript explores the Darboux transformation employed in the construction of exactly solvable models for pseudospin-one particles described by the Dirac-type equation. We focus on the settings where a flat band of zero energy is present in the...
Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
- 2024 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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Form-preserving Darboux transformations for 4 x 4 Dirac equations
scattering and spin-orbit interaction of Dirac fermions in graphene. We use the reducible backscattering is absent, i.e., the models are reflectionless....
Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
- 2022 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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Twisted kinks, Dirac transparent systems, and Darboux transformations
Darboux transformations are employed in construction and analysis of Dirac Hamiltonians with pseudoscalar potentials. By this method, we build a four-parameter class of reflectionless systems. Their potentials correspond to the composition o...
BE - Teoretická fyzika
- 2014 •
- Jx •
- Link
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Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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On the propagation of Dirac fermions in graphene with strain-induced inhomogeneous Fermi velocity
We consider systems described by a two-dimensional Dirac equation where the Fermi velocity is inhomogeneous as a consequence of mechanical deformations. We show that the mechanical deformations can lead to deflection and focusing of the wave packets....
Condensed matter physics (including formerly solid state physics, supercond.)
- 2020 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
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PT-symmetric invisible defects and confluent Darboux-Crum transformations
are illustrated with explicit examples of reflectionless models and systems with one spectral...
BE - Teoretická fyzika
- 2015 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Maxwell-Bloch equations without spectral broadening: the long-time asymptotics of an input pulse in a long two-level laser amplifier
) problem using a modern version of the inverse scattering transform method in the form of zeros has a condensation point at infinity). Such solitons cannot be reflectionless......
Pure mathematics
- 2023 •
- Jimp •
- Link
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Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
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