Zobrazeno 1 - 10
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pro vyhledávání: '"Spirko, Vladimir"'
Autor:
Owens, Alec, Špirko, Vladimir
Publikováno v:
J. Phys. B: At. Mol. Opt. Phys. {\bf 52}, 025102 (2019)
The scattering and spectroscopic properties of molecular halo states can serve as sensitive probes of the constancy of the electron-to-proton mass ratio $\beta=m_e/m_p$. Since halo states are formed by resonant $s$-wave interactions, their properties
Externí odkaz:
http://arxiv.org/abs/1905.04995
Publikováno v:
In Journal of Quantitative Spectroscopy and Radiative Transfer July 2023 302
Publikováno v:
Phys. Rev. A 93, 052506 (2016)
Numerous accidental near-degeneracies exist between the $2\nu_2$ and $\nu_4$ rotation-vibration energy levels of ammonia. Transitions between these two states possess significantly enhanced sensitivity to a possible variation of the proton-to-electro
Externí odkaz:
http://arxiv.org/abs/1808.05425
Publikováno v:
Mon. Not. R. Astron. Soc. 473, 4986 (2018)
A robust variational approach is used to investigate the sensitivity of the rotation-vibration spectrum of phosphine (PH$_3$) to a possible cosmological variation of the proton-to-electron mass ratio, $\mu$. Whilst the majority of computed sensitivit
Externí odkaz:
http://arxiv.org/abs/1808.05427
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
Akademický článek
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Publikováno v:
In Journal of Quantitative Spectroscopy and Radiative Transfer September 2021 272
Publikováno v:
In Journal of Quantitative Spectroscopy and Radiative Transfer May 2021 266
Publikováno v:
MNRAS, 450, 3191-3200 (2015)
A comprehensive study of the mass sensitivity of the vibration-rotation-inversion transitions of $^{14}$NH$_3$, $^{15}$NH$_3$, $^{14}$ND$_3$, and $^{15}$ND$_3$ is carried out variationally using the TROVE approach. Variational calculations are robust
Externí odkaz:
http://arxiv.org/abs/1505.05989
Publikováno v:
In Journal of Quantitative Spectroscopy and Radiative Transfer October 2020 254