Zobrazeno 1 - 10
of 163
pro vyhledávání: '"Voitsekhivska, O."'
Publikováno v:
Condensed Matter Physics, 2023, vol. 26, No. 2, 23705
A quantum theory of spectral parameters and oscillator strengths of quantum transitions in an active region, which contains cascades of wide quantum wells with a complicated potential profile is developed. A new spatial design of the cascade is calcu
Externí odkaz:
http://arxiv.org/abs/2305.15966
Publikováno v:
Condens. Matter Phys., 2021, vol. 24, No. 1, 13705
Within unitary transformed Hamiltonian of Fr\"ohlich type, using the Green's functions method, exact renormalized energy spectrum of quasiparticle strongly interacting with two-mode polarization phonons is obtained at $T=0$ K in a model of the system
Externí odkaz:
http://arxiv.org/abs/2103.15556
Publikováno v:
Condens. Matter Phys., 2019, vol. 22, No. 3, 33703
The theory of renormalized energy spectrum of a multi-level quasiparticle interacting with polarization phonons at $T=0$ K is developed within the Feynman-Pines diagram technique in a new approach. It permits a successive separation of multiplicative
Externí odkaz:
http://arxiv.org/abs/1910.00918
Publikováno v:
Condens. Matter Phys., 2018, vol. 21, No. 4, 43703
Theory of the spectrum of localized two-level quasi-particle renormalized due to interaction with polarization phonons at cryogenic temperature is developed using the generalized method of Feynman-Pines diagram technique. Using the procedure of parti
Externí odkaz:
http://arxiv.org/abs/1812.08570
Publikováno v:
Condens. Matter Phys., 2018, vol. 21, No. 1, 13703
The effect of a constant electric field and donor impurity on the energies and oscillator strengths of electron intraband quantum transitions in double-well spherical quantum dot GaAs/Al$_{x}$Ga$_{1-x}$As/GaAs is researched. The problem is solved in
Externí odkaz:
http://arxiv.org/abs/1803.11425
Publikováno v:
Condens. Matter Phys., 2017, vol. 20, No. 4, 43706
The theory of renormalized energy spectrum of localized quasi-particle interacting with polarization phonons at finite temperature is developed within the Feynman-Pines diagram technique. The created computer program effectively takes into account mu
Externí odkaz:
http://arxiv.org/abs/1712.05367
Publikováno v:
Condens. Matter Phys., vol. 19, No. 4, 43701 (2016)
Using the Feynman-Pines diagram technique, the energy spectrum of localized quasi-particles interacting with polarization phonons is calculated and analyzed in the wide range of energies at the finite temperature of the system. It is established that
Externí odkaz:
http://arxiv.org/abs/1612.07188
Publikováno v:
Condens. Matter Phys., 2015, vol. 18, No. 3, 33707
Partial summing of infinite range of diagrams for the two-phonon mass operator of polaron described by Fr\"{o}hlich Hamiltonian is performed using the Feynman-Pines diagram technique. Renormalized spectral parameters of ground and first excited (phon
Externí odkaz:
http://arxiv.org/abs/1510.06912
Publikováno v:
In Superlattices and Microstructures September 2020 145
Publikováno v:
Condens. Matter Phys., 2014, vol. 17, No. 2, 23704
The Hamiltonian of electrons interacting with interface phonons in three-barrier resonant tunneling structure is established using the first principles within the models of effective mass and polarization continuum. Using the Green's functions method
Externí odkaz:
http://arxiv.org/abs/1407.2431