Zobrazeno 1 - 10
of 2 981
pro vyhledávání: '"Umarov, A."'
We study the properties of modulational instability and discrete breathers arising in a quasi-one-dimensional discrete Gross-Pitaevskii equation with Lee-Huang-Yang corrections. Conditions for modulation instability and instability regions of nonline
Externí odkaz:
http://arxiv.org/abs/2409.18883
The properties of quasi-one-dimensional quantum droplets of Bose-Einstein condensates are investigated analytically and numerically, taking into account the contribution of quantum fluctuations. Through the development of a variational approach emplo
Externí odkaz:
http://arxiv.org/abs/2407.07384
In this work, we investigate the modulational instability of plane wave solutions within a modified Gross-Pitaevskii equation framework. The equation features cubic and quartic nonlinearity. It models the behaviour of quasi-one-dimensional Bose-Einst
Externí odkaz:
http://arxiv.org/abs/2405.02282
Autor:
Umarov, Sabir
This paper is devoted to the general theory of systems of time-fractional differential-operator equations. The representation formulas for solutions of systems of ordinary differential equations with single (commensurate) fractional order is known th
Externí odkaz:
http://arxiv.org/abs/2402.02638
It has been known that electronic conical intersections in a molecular system can also be created by laser light even in diatomics. The direct consequence of these light-induced degeneracies is the appearance of a strong mixing between the electronic
Externí odkaz:
http://arxiv.org/abs/2401.14080
Publikováno v:
East European Journal of Physics, Iss 3, Pp 359-363 (2024)
The dependence of the temperature of charge carriers and phonons on the contact resistance of the Schottky diode is calculated. It is shown that the increase in contact resistance depends on the current passing through the diode, the surface and volu
Externí odkaz:
https://doaj.org/article/6146ed7506ef48e1809b47ff1dfea8ff
Publikováno v:
Цифровые модели и решения, Vol 3, Iss 2, Pp 28-42 (2024)
The research considers the state of inflationary processes in Uzbekistan over the last five years, forecasting for the near future, as well as changes in the mechanism of formation of the key indicator relating to inflation: consumer price index. It
Externí odkaz:
https://doaj.org/article/d8201d43c7b64b11993b9867f6554652
A nonlocal boundary value problem for the fractional version of the well known in fluid dynamics Rayleigh-Stokes equation is studied. Namely, the condition $u(x,T)=\beta u(x,0)+\varphi(x)$, where $\beta $ is an arbitrary real number, is proposed inst
Externí odkaz:
http://arxiv.org/abs/2303.10652
We demonstrate the existence of compactons matter waves in binary mixtures of Bose-Einstein condensates (BEC) trapped in deep optical lattices (OL) subjected to equal contributions of intra-species Rashba and Dresselhaus spin-orbit coupling (SOC) und
Externí odkaz:
http://arxiv.org/abs/2212.13516
Publikováno v:
Паёми Сино, Vol 26, Iss 2, Pp 284-293 (2024)
The study provides literature data on the impact of melatonin on blood pressure (BP) in elderly individuals with arterial hypertension (AH). AH is a significant risk factor for cardiovascular diseases (CVDs) and is a key focus of medical research. Me
Externí odkaz:
https://doaj.org/article/6b477d3cc3394a5d85982da1c7e5f3fe