Zobrazeno 1 - 9
of 9
pro vyhledávání: '"N S, Fialko"'
On the calculation of thermodynamic quantities in the Holstein model for homogeneous polynucleotides
Publikováno v:
Journal of Experimental and Theoretical Physics. 124:635-642
The dynamics of a system for different types of polarons, i.e., in polythymine nucleotides (large-radius polaron), in polyadenine fragments (small-radius polaron), and in polyguanine DNA (intermediate case) at different thermostat temperatures are ca
Autor:
V. D. Lakhno, N. S. Fialko
Publikováno v:
Journal of Experimental and Theoretical Physics. 120:125-131
In today’s literature, polaron states in classical molecular chains are mostly calculated at zero temperature. It is assumed that the properties of these states change little if the temperature is different from zero but is much less than the chara
Autor:
N. S. Fialko, V. D. Lakhno
Publikováno v:
Russian Journal of Physical Chemistry A. 86:832-836
Theoretical calculations of solvation contribution to hole energy in a polynucleotide chain give very low hole mobility values at zero temperature, ��< 10^{-3} cm^2/(V s). We calculated hole mobility at physiological temperature for the Poly G/Po
The dynamics of charge migration was modeled to calculate temperature dependencies of its thermodynamic equilibrium values such as energy and electronic heat capacity in homogeneous adenine fragments. The energy varies from nearly polaron one at T~0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b15afc97262afb683d4cca05165f35a
Autor:
V. D. Lakhno, N. S. Fialko
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 79:464-467
It is shown that, at zero temperature, a hole placed in a homogeneous synthetic nucleotide chain with applied electric field demonstrates Bloch oscillations. The oscillations of the hole placed initially on one of the base pairs arise in response to
Autor:
V.D. Lakhno, N. S. Fialko
Publikováno v:
The European Physical Journal B. 43:279-281
A method based on a selfconsistent solution of a quantum-mechanical system with temperature fluctuations described by Langevin equations is developed to calculate the charge carrier mobility in DNA. To model the charge transfer in DNA, a combined Hol
The temperature dependence of a charge mobility in a model DNA based on Holstein Hamiltonian is calculated for 4 types of homogeneous sequences It has turned out that upon rescaling all 4 types are quite similar. Two types of rescaling, i.e. those fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9fe58d3a7549d1d39b48ae89f0b1f8ae
http://arxiv.org/abs/1308.4337
http://arxiv.org/abs/1308.4337
Autor:
V. D. Lakhno, N. S. Fialko
Publikováno v:
Journal of Experimental and Theoretical Physics Letters. 78:336-338
The conductivity of molecular DNA-based conductors has been calculated. Charge motion is described by quantum-mechanical equations, and macromolecular vibrations are described by classical equations of motion with dissipation and a source of temperat
Autor:
V D, Lakhno, N S, Fialko
Publikováno v:
Biofizika. 49(1)
The quantum-statistical approach was used to describe the charge transfer in nucleotide sequences. The results of numerical modeling for hole transfer in the GTTGGG sequence with background temperature noise are given. It was shown that, since guanin