Zeeman molecular probe for tests of fundamental physical constants

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F20%3A00524986" target="_blank" >RIV/61388963:_____/20:00524986 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/20:10421559

Výsledek na webu

<a href="https://academic.oup.com/mnras/article-abstract/494/2/1675/5815099?redirectedFrom=fulltext" target="_blank" >https://academic.oup.com/mnras/article-abstract/494/2/1675/5815099?redirectedFrom=fulltext</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1093/mnras/staa792" target="_blank" >10.1093/mnras/staa792</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Zeeman molecular probe for tests of fundamental physical constants

Popis výsledku v původním jazyce

The impact of the Zeeman effect on the Λ-doublet spectra of diatomic radicals is analysed from the point of view of a possible cosmological variation of the proton-to-electron mass ratio, μ. The actual model calculations performed for the 2Π3/2 and 2Π1/2 states of 16OH reveal that the Λ-doublet energy levels of diatomic radicals can be tuned to degeneracy by means of the Zeeman effect using realistic magnetic fields. Tuning this degeneracy allows for a dramatic enhancement of the relative mass sensitivity coefficients of the corresponding transitions and for a substantial reduction of their Doppler broadening. Moreover, unlike their field-free counterparts associated with the degeneracies arising due to the A ∼ 4B situations (A and B being the spin–orbit and rotation constant, respectively), the electric dipole allowed e ↔f Zeeman-tuned transitions exhibit favourable intensities, thus evidencing their promising potential.

Název v anglickém jazyce

Zeeman molecular probe for tests of fundamental physical constants

Popis výsledku anglicky

The impact of the Zeeman effect on the Λ-doublet spectra of diatomic radicals is analysed from the point of view of a possible cosmological variation of the proton-to-electron mass ratio, μ. The actual model calculations performed for the 2Π3/2 and 2Π1/2 states of 16OH reveal that the Λ-doublet energy levels of diatomic radicals can be tuned to degeneracy by means of the Zeeman effect using realistic magnetic fields. Tuning this degeneracy allows for a dramatic enhancement of the relative mass sensitivity coefficients of the corresponding transitions and for a substantial reduction of their Doppler broadening. Moreover, unlike their field-free counterparts associated with the degeneracies arising due to the A ∼ 4B situations (A and B being the spin–orbit and rotation constant, respectively), the electric dipole allowed e ↔f Zeeman-tuned transitions exhibit favourable intensities, thus evidencing their promising potential.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Projekt

<a href="/cs/project/GA18-00918S" target="_blank" >GA18-00918S: Kvantová dynamika astrofyzikálně významných molekul</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Monthly Notices of the Royal Astronomical Society

ISSN

0035-8711

e-ISSN

—

Svazek periodika

494

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

6

Strana od-do

1675-1680

Kód UT WoS článku

000535877200010

EID výsledku v databázi Scopus

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