Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Ovsyannikov, A. I."'
Autor:
Polyansky, Oleg L., Ovsyannikov, Roman I., Tennyson, Jonathan, Belov, Sergei P., Tretyakov, Mikhail Yu., Makhnev, Vladimir Yu., Zobov, Nikolai F.
Publikováno v:
J. Mol. Spectrosc., 379, 111481 (2021)
A very accurate, (HF)$_2$ potential energy surface (PES) due to Huang et al. (J. Chem. Phys., 150, 154302 (2019)) is used to calculate the energy levels of the HF dimer by solving the nuclear-motion Schr\"{o}dinger equation using variational program
Externí odkaz:
http://arxiv.org/abs/2107.09014
Autor:
Ovsyannikov, Roman I., Makhnev, Vladimir Yu., Zobov, Nikolai F., Koput, Jacek, Tennyson, Jonathan
Publikováno v:
J. Mol. Spectrosc., 379, 111481 (2021)
A very accurate, (HF)$_2$ potential energy surface (PES) is constructed based on \ai\ calculations performed using the MOLPRO package at the CCSD(T) level of theory with an aug-cc-pvQz-F12 basis set at about 161~000 points. a higher correlation corre
Externí odkaz:
http://arxiv.org/abs/2107.05969
Autor:
Golubiatnikov, German Yu., Polyansky, Oleg L., Zobov, Nikolai F., Tennyson, Jonathan, Ovsyannikov, Roman I., Tretyakov, Mikhail Yu.
Publikováno v:
In Journal of Molecular Spectroscopy September-October 2023 397
Autor:
Owens, Alec, Yurchenko, Sergei N., Polyansky, Oleg L., Ovsyannikov, Roman I., Thiel, Walter, Špirko, Vladimir
Publikováno v:
Mon. Not. R. Astron. Soc. 454, 2292 (2015)
The mass sensitivity of the vibration-rotation-inversion transitions of H$_3{}^{16}$O$^+$, H$_3{}^{18}$O$^+$, and D$_3{}^{16}$O$^+$ is investigated variationally using the nuclear motion program TROVE~\citep{TROVE:2007}. The calculations utilize new
Externí odkaz:
http://arxiv.org/abs/1808.05422
We present a general, numerically motivated approach to the construction of symmetry adapted basis functions for solving ro-vibrational Schr\"{o}dinger equations. The approach is based on the property of the Hamiltonian operator to commute with the c
Externí odkaz:
http://arxiv.org/abs/1708.07185
Autor:
Polyansky, Oleg L., Kyuberis, Aleksandra A., Lodi, Lorenzo, Tennyson, Jonathan, Yurchenko, Sergei N., Ovsyannikov, Roman I., Zobov, Nikolai F.
Publikováno v:
Mon. Not. R. astr. Soc., 466, 1363-1371.(2016)
Hot line lists for two isotopologues of water, \octo\ and \heto, are presented. The calculations employ newly constructed potential energy surfaces (PES) which take advantage of a novel method for using the large set of experimental energy levels for
Externí odkaz:
http://arxiv.org/abs/1702.03570
Autor:
Zobov, N.F., Bertin, T., Vander Auwera, J., Civiš, S., Knížek, A., Ferus, M., Ovsyannikov, Roman I., Makhnev, Vladimir Yu., Tennyson, Jonathan, Polyansky, Oleg L.
Publikováno v:
In Journal of Quantitative Spectroscopy and Radiative Transfer October 2021 273
Autor:
Al-Refaie, Ahmed F., Polyansky, Oleg L., Ovsyannikov, Roman I., Tennyson, Jonathan, Yurchenko, Sergei N.
Publikováno v:
MNRAS, 461, 1012-1022 (2016)
A computed line list for hydrogen peroxide, H$_2{}^{16}$O$_2$, applicable to temperatures up to $T=1250$~K is presented. A semi-empirical high accuracy potential energy surface is constructed and used with an {\it ab initio} dipole moment surface as
Externí odkaz:
http://arxiv.org/abs/1607.00498
Autor:
Gonchenko, S. V., Ovsyannikov, I. I.
We study bifurcations of periodic orbits in three parameter general unfoldings of certain types quadratic homoclinic tangencies to saddle fixed points. We apply the rescaling technique to first return (Poincar\'e) maps and show that the rescaled maps
Externí odkaz:
http://arxiv.org/abs/1509.00264
Autor:
Ovsyannikov, I. I., Turaev, D. V.
We give an analytic (free of computer assistance) proof of the existence of a classical Lorenz attractor for an open set of parameter values of the Lorenz model in the form of Yudovich-Morioka-Shimizu. The proof is based on detection of a homoclinic
Externí odkaz:
http://arxiv.org/abs/1508.07565