Zobrazeno 1 - 10
of 175
pro vyhledávání: '"Zolotaryuk, Y."'
The spectrum of a one-dimensional pseudospin-one Hamiltonian with a three-component potential is studied for two configurations: (i) all the potential components are constants over the whole coordinate space and (ii) the profile of some components is
Externí odkaz:
http://arxiv.org/abs/2310.17934
Publikováno v:
Published in Low Temp. Phys. 48, 1022 (2022); https://pubs.aip.org/aip/ltp/article-abstract/48/12/1022/2843799/
Two approaches are developed for the study of the bound states of a one-dimensional Dirac equation with the potential consisting of $N$ $\delta$-function centers. One of these uses the Green's function method. This method is applicable to a finite nu
Externí odkaz:
http://arxiv.org/abs/2309.00856
We develop an approach on how to define single-point interactions under the application of external fields. The essential feature relies on an asymptotic method based on the one-point approximation of multi-layered heterostructures that are subject t
Externí odkaz:
http://arxiv.org/abs/1906.03405
Discrete time quantum walks are unitary maps defined on the Hilbert space of coupled two-level systems. We study the dynamics of excitations in a nonlinear discrete time quantum walk, whose fine-tuned linear counterpart has a flat band structure. The
Externí odkaz:
http://arxiv.org/abs/1809.07981
Autor:
Zolotaryuk, A. V., Zolotaryuk, Y.
Publikováno v:
J. Phys. A: Math. Theor. vol. 44 (2011) 375305
Recently, the non-zero transmission of a quantum particle through the one-dimensional singular potential given in the form of the derivative of Dirac's delta function, $\lambda \delta'(x) $, with $\lambda \in \R$, being a potential strength constant,
Externí odkaz:
http://arxiv.org/abs/1202.1117
Publikováno v:
Phys. Rev. Lett. 100, 224102 (2008)
We consider the classical dynamics of a particle in a $d=2,3$-dimensional space-periodic potential under the influence of time-periodic external fields with zero mean. We perform a general time-space symmetry analysis and identify conditions, when th
Externí odkaz:
http://arxiv.org/abs/0801.4296
Autor:
Speight, J. M., Zolotaryuk, Y.
Publikováno v:
Nonlinearity 19 (2006) 1365
It is shown that the topological discrete sine-Gordon system introduced by Speight and Ward models the dynamics of an infinite uniform chain of electric dipoles constrained to rotate in a plane containing the chain. Such a chain admits a novel type o
Externí odkaz:
http://arxiv.org/abs/nlin/0509047
Publikováno v:
J. Phys. A: Math. Gen. 37 (2004) 6043-6051
We study the overdamped dynamics of a Brownian particle in the double-well potential under the influence of an external periodic (AC) force with zero mean. We obtain a dependence of the jump rate on the frequency of the external force. The dependence
Externí odkaz:
http://arxiv.org/abs/nlin/0407002
Experimental observation of the unidirectional motion of a topological soliton driven by a bi-harmonic ac force of zero mean is reported. The observation is made by measuring the current-voltage characteristics for a fluxon trapped in an annular Jose
Externí odkaz:
http://arxiv.org/abs/cond-mat/0407033
We study topological solitary waves (kinks and antikinks) in a nonlinear one-dimensional Klein-Gordon chain with the on-site potential of a double-Morse type. This chain is used to describe the collective proton dynamics in quasi-one-dimensional netw
Externí odkaz:
http://arxiv.org/abs/nlin/0208049