Authors:	Antypas, Dionysios Budker, Dmitry Flambaum, Victor V. Kozlov, Mikhail G. Perez, Gilad Ye, Jun
Title:	Fast apparent oscillations of fundamental constants
Online publication date:	13-Aug-2021
Year of first publication:	2020
Language:	english
Abstract:	Precision spectroscopy of atoms and molecules allows one to search for and to put stringent limits on the variation of fundamental constants. These experiments are typically interpreted in terms of variations of the fine structure constant α and the electron-to-proton mass ratio 𝜇=𝑚𝑒/𝑚𝑝 μ = m e / m p . Atomic spectroscopy is usually less sensitive to other fundamental constants, unless the hyperfine structure of atomic levels is studied. However, the number of possible dimensionless constants increases when allowed for fast variations of the constants, where “fast” is determined by the time scale of the response of the studied species or experimental apparatus used. In this case, the relevant dimensionless quantity is, for example, the ratio 𝑚𝑒/⟨𝑚𝑒⟩ m e / ⟨ m e ⟩ and ⟨𝑚𝑒⟩ ⟨ m e ⟩ is the time average. In this sense, one may say that the experimental signal depends on the variation of dimensionful constants ( 𝑚𝑒 m e in this example).
DDC:	530 Physik 530 Physics
Institution:	Johannes Gutenberg-Universität Mainz
Department:	FB 08 Physik, Mathematik u. Informatik
Place:	Mainz
ROR:	https://ror.org/023b0x485
DOI:	http://doi.org/10.25358/openscience-6273
Version:	Published version
Publication type:	Zeitschriftenaufsatz
License:	CC BY
Information on rights of use:	https://creativecommons.org/licenses/by/4.0/
Journal:	Annalen der Physik 532 45
Pages or article number:	1900566
Publisher:	Wiley-VCH
Publisher place:	Berlin
Issue date:	2020
ISSN:	1521-3889
Publisher URL:	https://doi.org/10.1002/andp.201900566
Publisher DOI:	10.1002/andp.201900566
Appears in collections:	JGU-Publikationen