Zobrazeno 1 - 10
of 16 152
pro vyhledávání: '"Nazarenko, A"'
We study numerically wave turbulence in a Bose-Einstein condensate in the forced and dissipated inverse cascade settings. We observe that when the forcing rate is increased, the turbulence spectrum gradually transitions from the weak-wave turbulence
Externí odkaz:
http://arxiv.org/abs/2411.19812
Autor:
Kumari, Priyanka, Kurochkin, Olexandr, Nazarenko, Vassili G., Lavrentovich, Oleg D., Golovaty, Dmitry, Sternberg, Peter
Domain structure of a fluid ferroelectric nematic is dramatically different from the domain structure of solid ferroelectrics since it is not restricted by rectilinear crystallographic axes and planar surface facets. We demonstrate that thin films of
Externí odkaz:
http://arxiv.org/abs/2411.12903
We study numerically the nonintegrable dynamics of coherent, solitonic, nonlinear waves, in a spatially nonlocal nonlinear Schrodinger equation relevant to realistic modelling of optical systems: the Schrodinger-Helmholtz equation. We observe a singl
Externí odkaz:
http://arxiv.org/abs/2410.12507
Bogoliubov waves are fundamental excitations of Bose-Einstein Condensates (BECs). They emerge from a perturbed ground state and interact nonlinearly, triggering turbulent cascades. Here, we study turbulent BECs theoretically and numerically using the
Externí odkaz:
http://arxiv.org/abs/2408.15163
Internal gravity waves are an essential feature of flows stratified media, such as oceans and atmospheres. To investigate their dynamics, we perform simulations of the forced-dissipated kinetic equation describing the evolution of the energy spectrum
Externí odkaz:
http://arxiv.org/abs/2407.11469
Autor:
Moreno-Armijos, M. A., Fritsch, A. R., García-Orozco, A. D., Sab, S., Telles, G., Zhu, Y., Madeira, L., Nazarenko, S., Yukalov, V. I., Bagnato, V. S.
The dynamics of non-equilibrium closed quantum systems and their route to thermalization are of fundamental interest to several fields, from cosmology to particle physics. However, a comprehensive description of non-equilibrium phenomena still presen
Externí odkaz:
http://arxiv.org/abs/2407.11237
Autor:
Nazarenko, Anton A., Nazarenko, A. V.
Publikováno v:
Ukr. J. Phys. 69(7) (2024) 498-514
Guided by physical needs, we deal with the rotationally isotropic Poincar\'e ball, when considering the complement of Borromean rings embedded in it. We consistently describe the geometry of the complement and realize the fundamental group as isometr
Externí odkaz:
http://arxiv.org/abs/2404.02615
Autor:
Marchenko, Alexandr A., Kapitanchuk, Oleksiy L., Lopatina, Yaroslava Yu., Nazarenko, Kostiantyn G., Senenko, Anton I., Katsonis, Nathalie, Nazarenko, Vassili G., Lavrentovich, Oleg D.
Publikováno v:
Physical Review Letters 132, 098101 (2024)
Understanding nanoscale mechanisms responsible for the recently discovered ferroelectric nematics can be helped by direct visualization of self-assembly of strongly polar molecules. Here we report on scanning tunneling microscopy (STM) studies of mon
Externí odkaz:
http://arxiv.org/abs/2401.10048
Autor:
Labarre, Vincent, Lanchon, Nicolas, Cortet, Pierre-Philippe, Krstulovic, Giorgio, Nazarenko, Sergey
Publikováno v:
J. Fluid Mech. 998 (2024) A17
We present a new derivation of the kinetic equation for weak, non-hydrostatic internal gravity wave turbulence. The equation is equivalent to the one obtained by Caillol & Zeitlin (2000), but it takes a canonical form. We show that it conserves the e
Externí odkaz:
http://arxiv.org/abs/2311.14370
Autor:
L'vov, Victor S., Pomyalov, Anna, Nazarenko, Sergey V., Bozhko, Dmytro A., Kreil, Alexander J. E., Hillebrands, Burkard, Serga, Alexander A.
Publikováno v:
Physical Review B 109, 014301 (2024)
We consider flux equilibrium in dissipative nonlinear wave systems subject to external energy pumping. In such systems, the elementary excitations, or quasiparticles, can create a Bose-Einstein condensate. We develop a theory on the Bose-Einstein con
Externí odkaz:
http://arxiv.org/abs/2311.05315