20 citations · 62 across the 8 of their papers we have counts for
8 papers
Quantum transport in a driven disordered potential: onset of directed current and noise-induced current reversal
Denis Makarov, Leonid Kon'kov
We study motion of a quantum wavepacket in a one-dimensional potential with correlated disorder. Presence of long-range potential correlations allows for existence of both localize…
Order-to-chaos transition in the model of a quantum pendulum subjected to noisy perturbation
Denis Makarov, Leonid Kon'kov
Motion of randomly-driven quantum nonlinear pendulum is considered. Utilizing one-step Poincaré map, we demonstrate that classical phase space corresponding to a single realization…
Recovery of ordered periodic orbits with increasing wavelength for sound propagation in a range-dependent waveguide
L. E. Kon'kov, D. V. Makarov, E. V. Sosedko +1
We consider sound wave propagation in a range-periodic acoustic waveguide in the deep ocean. It is demonstrated that vertical oscillations of a sound-speed perturbation, induced by…
Quantum ratchet driven by broadband perturbation
D. V. Makarov, L. E. Kon'kov
Motion of an atomic ensemble trapped into a deep optical lattice is considered. We propose a novel approach to construct an atomic ratchet by superimposing two additional lattices…
Study of wave chaos in a randomly-inhomogeneous oceanic acoustic waveguide: spectral analysis of the finite-range evolution operator
D. V. Makarov, L. E. Kon'kov, M. Yu. Uleysky +1
The proplem of sound propagation in an oceanic waveguide is considered. Scattering on random inhomogeneity of the waveguide leads to wave chaos. Chaos reveals itself in spectral pr…
Geometric optics with atomic beams scattered by a detuned standing laser wave
S. V. Prants, V. O. Vitkovsky, L. E. Konkov
We report on theoretical and numerical study of propagation of atomic beams crossing a detuned standing-wave laser beam in the geometric optics limit. The interplay between externa…
Level spacing statistics in a randomly-inhomogeneous acoustic waveguide
D. V. Makarov, L. E. Kon'kov, M. Yu. Uleysky
Dynamics of a randomly-perturbed quantum system with 3/2-degrees of freedom is considered. We introduce a transfer operator being the quantum analogue of the specific Poincaré map.…
Quantum chaos and fractals with atoms in cavities
M. Uleysky, L. Kon'kov, S. Prants
We study the coupled translational, electronic, and field dynamics of the combined system "a two-level atom + a single-mode quantized field + a standing-wave ideal cavity". We deri…