6533b7d0fe1ef96bd125b813
RESEARCH PRODUCT
Fast apparent oscillations of fundamental constants
Mikhail KozlovGilad PerezDmitry BudkerDmitry BudkerD. AntypasJun YeVictor V. FlambaumVictor V. Flambaumsubject
Scale (ratio)Atomic Physics (physics.atom-ph)530 PhysicsFOS: Physical sciencesGeneral Physics and Astronomy02 engineering and technologyAtomic spectroscopyElectron53001 natural sciencesPhysics - Atomic PhysicsHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesddc:530Physics::Atomic Physics010306 general physicsHyperfine structurePhysicsHigh Energy Physics::PhenomenologyAtoms in moleculesFine-structure constantSense (electronics)021001 nanoscience & nanotechnology530 PhysikHigh Energy Physics - PhenomenologyAtomic physics0210 nano-technologyDimensionless quantitydescription
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 $\alpha$ and the electron to proton mass ratio $\mu=m_e/m_p$. 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 we allow 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 $m_e/\langle m_e \rangle$ and $\langle m_e \rangle$ is the time average. In this sense, one may say that the experimental signal depends on the variation of dimensionful constants ($m_e$ in this example).
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-12-03 |