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We study one-dimensional optical wave turbulence described by the 1D Schr{\"o}dinger-Helmholtz model for nonlinear light propagation in spatially nonlocal nonlinear optical media such as nematic liquid crystals. By exploiting the specific structure o
Externí odkaz:
http://arxiv.org/abs/2412.14153
Autor:
Basnet, Bijaya, Paladugu, Sathyanarayana, Kurochkin, Oleksandr, Buluy, Oleksandr, Aryasova, Natalie, Nazarenko, Vassili G., Shiyanovskii, Sergij V., Lavrentovich, Oleg D.
Electric field-induced splay of molecular orientation, called the Fr\'eedericksz transition, is a fundamental electro-optic phenomenon in nonpolar nematic liquid crystals. In a ferroelectric nematic NF with a spontaneous electric polarization P, the
Externí odkaz:
http://arxiv.org/abs/2412.09553
Autor:
Gavrilik, A. M., Nazarenko, A. V.
For a quasi-two-dimensional nonlinear sigma model on the real Stiefel manifolds with a generalized (anisotropic) metric, the equations of a two-charge renormalization group (RG) for the homothety and anisotropy of the metric as effective couplings ar
Externí odkaz:
http://arxiv.org/abs/2412.02472
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