Zobrazeno 1 - 10
of 753
pro vyhledávání: '"Yachmenev, A."'
We studied the effect of nuclear-quadrupole interactions on the field-free impulsive alignment of different asymmetric-top molecules. Our analysis is focused on the influence of the hyperfine- and rotational-energy-level structures. These depend on t
Externí odkaz:
http://arxiv.org/abs/2408.01125
We present a new nonlinear variational framework for simultaneously computing ground and excited states of quantum systems. Our approach is based on approximating wavefunctions in the linear span of basis functions that are augmented and optimized \e
Externí odkaz:
http://arxiv.org/abs/2308.16468
Autor:
Yaremko, Oleg, Yachmenev, Andrey
In this paper, we introduce a new method for calculating fractional integrals and differentials. The method involves an equation that we have obtained from infinite applied integration by parts. The equation works for special class of functions and p
Externí odkaz:
http://arxiv.org/abs/2309.03207
Autor:
Latosh, Boris, Yachmenev, Anton
Publikováno v:
Classical and Quantum Gravity, 2023
We discuss an alternative approach to studying the low energy limit of quantum general relativity. We investigate the low energy limit of a scattering cross-section for two massive scalar particles. Unlike calculations involving the reconstruction of
Externí odkaz:
http://arxiv.org/abs/2304.08812
Approximating functions by a linear span of truncated basis sets is a standard procedure for the numerical solution of differential and integral equations. Commonly used concepts of approximation methods are well-posed and convergent, by provable app
Externí odkaz:
http://arxiv.org/abs/2212.01383
Autor:
Yang, Guang, de Oliveira, Vinicius Silva, Laumer, Dominic, Heyl, Christoph M., Yachmenev, Andrey, Hartl, Ingmar, Küpper, Jochen
We report the broadband absorption spectrum of the $3\nu_{2}$ band of $^{14}$NH$_{3}$ near 4 $\mu m$. The data were recorded using a mid-infrared frequency comb coupled to a homebuilt Fourier-transform spectrometer with a resolution of 0.00501 $cm^{-
Externí odkaz:
http://arxiv.org/abs/2205.04088
The water molecule occurs in two nuclear-spin isomers that differ by the value of the total nuclear spin of the hydrogen atoms, i.e., $I=0$ for para-H$_2$O and $I=1$ for ortho-H$_2$O. Spectroscopic transitions between rovibrational states of ortho an
Externí odkaz:
http://arxiv.org/abs/2203.07945
Publikováno v:
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", Vol 7, Iss 4, Pp 48-55 (2023)
The purpose of the work is to conduct autonomous experimental studies of an resistojet with two autonomous heating elements with a diameter of 4 mm. As a result of experimental studies of the resistojet, the heating dynamics of the micromotor struc
Externí odkaz:
https://doaj.org/article/c48fe3b7a9374617a0a01891ce72b76c
Publikováno v:
Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", Vol 7, Iss 4, Pp 56-64 (2023)
The paper presents a methodology for constructing a flyby trajectory of a base spacecraft for the purpose of inspecting it using a small spacecraft carried on board and estimating the required characteristic velocity reserves for the flyby maneuver
Externí odkaz:
https://doaj.org/article/b36a1051555448e4a60f682dddc79f8b
Publikováno v:
Омский научный вестник, Vol 4 (188), Pp 140-151 (2023)
In this paper, the applied problems of designing a bridge resonant converter with a high-voltage arc ignition system in the channel of an electric arc motor is solved. The development of a bridge resonant power supply is presented, a review and an
Externí odkaz:
https://doaj.org/article/a48c803afda6494da4ef0b9679ba0a05