Quantum Interference Line Shifts of Broad Dipole‐Allowed Transitions. Issue 5 (8th April 2019)

• Record Type: Journal Article
• Authors: Udem, Thomas; Maisenbacher, Lothar; Matveev, Arthur; Andreev, Vitaly; Grinin, Alexey; Beyer, Axel; Kolachevsky, Nikolai; Pohl, Randolf; Yost, Dylan C.; Hänsch, Theodor W.
• Editors: Blaum, Klaus; Budker, Dmitry; Surzhykov, Andrey; Ullrich, Joachim
• Is Part Of: Annalen der Physik. Volume 531:Issue 5(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-04-08
• Subjects: high resolution laser spectroscopy -- proton charge radius -- quantum interference -- rydberg constant -- testing quantum electrodynamics; Physics -- Periodicals; Chemistry -- Periodicals; 530.05
• DOI: 10.1002/andp.201900044
• Languages: English
• ISSNs: 0003-3804

Abstract

Abstract: High‐resolution laser spectroscopy serves the purpose of determining the energy difference between states of atoms and molecules with the best possible accuracy. Therefore, one may face the problem of finding the center of a symmetric line within a small fraction of the line width, or one needs to extract the energy difference from an asymmetric line without a uniquely defined center. Multiplets of atomic resonance lines are subject to mutual line pullings and give rise to asymmetric line distortions due to quantum interference. This paper reviews the treatment of these distortions for dipole‐allowed one‐photon transitions. Specific examples are given for hydrogen and helium spectroscopy. Abstract : High‐resolution laser spectroscopy serves the purpose of determining the energy difference between states of atoms and molecules . To test fundamental theories the utmost accuracy is needed which implies to fully understand possible line distortions. This discusses asymmetric line distortion due to quantum interference in great detail.