47 citations · 365 across the 44 of their papers we have counts for
45 papers
On the effect of force on DNA in the Peyrard-Bishop-Dauxois model
I. V. Likhachev, V. D. Lakhno
This paper presents a numerical study of the dynamics of DNA double helix breakage under the influence of external forces using the Peyrard-Bishop-Dauxois (PBD) model. The PBD mode…
On the comparison of models and experiments in the study of DNA open states: the problem of degrees of freedom
Alexey S. Shigaev, Victor D. Lakhno
Simple mechanical models of DNA play an important role in studying the dynamics of its open states. The main requirement when developing a DNA model is the correct selection of its…
On the thermodynamics of DNA in the Peyrard-Bishop-Dauxois model
Ilya V. Likhachev, Alexey S. Shigaev, Victor D. Lakhno
Based on the direct method of molecular dynamics, the temperature dependence of energy, partition function, entropy and free energy, describing the first-order phase transition, is…
Comparison of different thermostats in the Holstein model
N. Fialko, M. Olshevets, V. D. Lakhno
When modeling charge dynamics in a chain of N sites at a temperature T, a Langevin thermostat and a Hamiltonian system, i.e., a chain heated to a given temperature before charge is…
Translation-Invariant Excitons in a Phonon Field
Victor D. Lakhno
Large-radius excitons in polar crystals are considered. It is shown that translation invariant description of excitons interacting with a phonon field leads to a nonzero contributi…
Translation Invariant Bipolarons and Charge Density Waves in High-Temperature Superconductors
Victor Lakhno
A correlation is established between the theories of superconductivity based on the concept of charge density waves (CDW) and the translation invariant (TI) bipolaron theory. It is…
Pseudogap isotope effect as a probe of bipolaron mechanism in high temperature superconductors
Victor Lakhno
A theory of a pseudogap phase of high-temperature superconductors where current carriers are translation invariant bipolarons is developed. A temperature T* of a transition from a…
Isotope effect in the translation-invariant bipolaron theory of high-temperature superconductivity
Victor D. Lakhno
It is shown that the translation-invariant bipolaron theory of superconductivity can explain the dependence of the isotope coefficient in high-temperature superconductors on the cr…
Translational-invariant bipolarons and superconductivity
Victor D. Lakhno
A translation-invariant (TI) bipolaron theory of superconductivity based, like Bardeen-Cooper-Schrieffer theory, on Fröhlich Hamiltonian is presented. Here the role of Cooper pairs…
New method of soft modes investigation by Little-Parks effect
Victor D. Lakhno
As is known, Little-Parks effect concerned with oscillations of the critical temperature of a superconducting transition was one of the first effects which suggested the existence…
The way from high to room temperature superconductivity
Victor D. Lakhno
Presently, the main method of producing new high-temperature superconductors is chemical when record temperatures of the superconducting transition are reached due to changes…
Investigation of DNA denaturation in Peyrard-Bishop-Dauxois model by molecular dynamics method
I. V. Likhachev, V. D. Lakhno
The phase transition of duplex into the denaturated state is studied in the Peyrard-Bishop-Dauxois model by the method of direct molecular-dynamical modeling.…
Translation Invariant Bipolaron Theory of Superconductivity and Spectroscopic Experiments
Victor Lakhno
The explanation of the nature of superconducting gap in high temperature superconductors (HTSC) is a fundamental task which solution can lead to the understanding of superconductin…
Superconducting properties of a nonideal bipolaron gas
Victor Lakhno
The properties of a Bose gas of translation-invariant (TI) bipolarons analogous to Cooper pairs are considered. As in the BCS theory, the description of a TI-bipolaron gas is based…
New insight into the dynamics of rhodopsin photoisomerization from one-dimensional quantum-classical modeling
Alexey S. Shigaev, Tatiana B. Feldman, Victor A. Nadtochenko +2
Characterization of the primary events involved in the photoisomerization of the rhodopsin retinal chromophore was approximated by a minimum one-dimensional quantum-cla…
Peculiarities in the concentration dependence of the superconducting transition temperature in the bipolaron theory of Cooper pairs
Victor D. Lakhno
It is shown that the bipolaron theory of Cooper pairs suggests that there is a possibility for a superconducting phase to exist at low and high levels of doping and be absent at in…
Cooper pairs and bipolarons
Victor D. Lakhno
It is shown that Cooper pairs are a solution of the bipolaron problem for model Fröhlich Hamiltonian. The total energy of a pair for the initial Fröhlich Hamiltonian is found. Diff…
A translation invariant bipolaron in the Holstein model and superconductivity
Victor Lakhno
Large-radius translation invariant (TI) bipolarons are considered in a one-dimensional Holstein molecular chain. Criteria of their stability are obtained. The energy of a translati…
Temperature dependence of electronic heat capacity in Holstein model
N. S. Fialko, E. V. Sobolev, V. D. Lakhno
The dynamics of charge migration was modeled to calculate temperature dependencies of its thermodynamic equilibrium values such as energy and electronic heat capacity in homogeneou…
On the term of the 4-th order with respect to the field operators in the translation-invariant polaron theory
Victor D. Lakhno
It is shown that 4-th order term in the translation-invariant polaron theory vanishes.
Phonon interaction of electron in the translation-invariant strong-coupling theory
Victor D. Lakhno
A dependence of phonon interaction on the interelectronic distance is found for a translation-invariant (TI) strong-coupling bipolaron. It is shown that the charge induced by the e…
Superconducting properties of 3D low-density TI-bipolaron gas in magnetic field
Victor D. Lakhno
Consideration is given to thermodynamical properties of a three-dimensional Bose-condensate of translation-invariant bipolarons (TI-bipolarons) in magnetic field. The critical temp…
Superconducting properties of 3D low-density TI-bipolaron gas
V. D. Lakhno
Consideration is given to thermodynamical properties of a three-dimensional Bose-condensate of translation-invariant bipolarons (TI-bipolarons). The critical temperature of transit…
Continuum Model of the One-Dimensional Holstein Bipolaron in DNA
N. I. Kashirina, V. D. Lakhno
The work is devoted to obtaining the 1D bipolaron functional by Holstein method for the continuum approximation. We analyzed the effect of electron correlations associated with the…