Zobrazeno 1 - 10
of 866
pro vyhledávání: '"adiabatic approximation"'
Publikováno v:
Известия высших учебных заведений. Поволжский регион: Физико-математические науки, Iss 3 (2023)
Background. Quantum dots (QDs) have unique optical properties that have found wide applications in optoelectronics, biology and medicine. The problem of controlling the spectral – luminescent properties of QDs initiated studies of the mechanisms of
Externí odkaz:
https://doaj.org/article/34a5a4c465134f8389a4ffb5f2b2dde8
Autor:
Peter Lebedev-Stepanov
Publikováno v:
Encyclopedia, Vol 3, Iss 2, Pp 430-448 (2023)
Spectral lines in the optical spectra of atoms, molecules, and other quantum systems are characterized by a range of frequencies ω or a range of wavelengths λ=2πc/ω, where c is the speed of light. Such a frequency or wavelength range is called th
Externí odkaz:
https://doaj.org/article/f359031980b9476eb617b4ec900c4248
Publikováno v:
Известия высших учебных заведений. Поволжский регион: Физико-математические науки, Iss 2 (2023)
Background. At present, much attention is paid to the dielectric engineering of the material of the surrounding matrix and low-dimensional structures, which makes it possible to purposefully change their properties and optimize the characteristics of
Externí odkaz:
https://doaj.org/article/388d03a8e98240c5b934ebc607c13032
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Akademický článek
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Publikováno v:
Nanoscale Research Letters, Vol 17, Iss 1, Pp 1-19 (2022)
Abstract Electronic and excitonic states in an InSb strongly flattened ellipsoidal quantum dot (QD) with complicated dispersion law are theoretically investigated within the framework of the geometric adiabatic approximation in the strong, intermedia
Externí odkaz:
https://doaj.org/article/d25bb624d643466bbe65f69e1967aed2
Autor:
S.M. Al-Rawashdeh, S.B. Masadeh
Publikováno v:
Results in Physics, Vol 49, Iss , Pp 106508- (2023)
We examine the applicability of the adiabatic approximation in the case of proton scattering off statically deformed actinide and rare-earth nuclei. This is achieved by deforming a global spherical potential to allow coupling of the elastic channel t
Externí odkaz:
https://doaj.org/article/716f9800bfdc43ab8365f379827e652a
Autor:
Martin Kröger, Reinhard Schlickeiser
Publikováno v:
Physics, Vol 4, Iss 2, Pp 504-524 (2022)
The temporal evolution of pandemics described by the susceptible-infectious-recovered (SIR)-compartment model is sensitively determined by the time dependence of the infection (a(t)) and recovery (μ(t)) rates regulating the transitions from the susc
Externí odkaz:
https://doaj.org/article/b4405670bbbd4aaba125a7cb963021a4
Autor:
K.C. Mishra, J. Collins
Publikováno v:
Optical Materials: X, Vol 15, Iss , Pp 100190- (2022)
The theory of radiative and nonradiative transition rates has been formulated within the crude adiabatic approximation for an optical ion in a solid. The basis set consists of products of electronic wavefunctions at the equilibrium nuclear configurat
Externí odkaz:
https://doaj.org/article/b0b6781059494f2f8ae07db8ab3dcda5
Publikováno v:
Известия высших учебных заведений. Поволжский регион: Физико-математические науки, Iss 1 (2022)
Background. Recently, there has been growing interest in studying the influence of electric field effects on the properties of semiconductor quantum dots. This is due to the fact that in such systems there is a high degree of freedom in controlling
Externí odkaz:
https://doaj.org/article/654ac86b09c14eeeb75d0da9b8fe09af