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Title: Shifts from a distant neighboring resonance for a four-level atom

Abstract

In a recent paper [Phys. Rev. A 82, 052519 (2010)], the systematic shifts of a resonance due to quantum-mechanical interference from a distant neighboring resonance were derived. In that paper, the simplest three-level closed system was used to calculate analytic expressions for shifts in the resonant line centers. Here, we extend the analysis to the more relevant four-level system, which consists of two ground states and two excited states and which incorporates the physics of dark states. The shifts are shown to depend on the type of experiment performed and can be much larger than the shifts for the three-level system. The analytic formulas obtained are applied to the {sup 23}S-to-{sup 23}P transitions in atomic helium, where significant shifts are found.

Authors:
;  [1]
  1. Department of Physics and Astronomy, York University, Toronto, Ontario M3J 1P3 (Canada)
Publication Date:
OSTI Identifier:
22068693
Resource Type:
Journal Article
Journal Name:
Physical Review. A
Additional Journal Information:
Journal Volume: 84; Journal Issue: 3; Other Information: (c) 2011 American Institute of Physics; Country of input: Syrian Arab Republic; Journal ID: ISSN 1050-2947
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ATOMS; EXCITED STATES; GROUND STATES; HELIUM; INTERFERENCE; MESONS; QUANTUM MECHANICS; RESONANCE

Citation Formats

Horbatsch, M., and Hessels, E. A. Shifts from a distant neighboring resonance for a four-level atom. United States: N. p., 2011. Web. doi:10.1103/PHYSREVA.84.032508.
Horbatsch, M., & Hessels, E. A. Shifts from a distant neighboring resonance for a four-level atom. United States. doi:10.1103/PHYSREVA.84.032508.
Horbatsch, M., and Hessels, E. A. Thu . "Shifts from a distant neighboring resonance for a four-level atom". United States. doi:10.1103/PHYSREVA.84.032508.
@article{osti_22068693,
title = {Shifts from a distant neighboring resonance for a four-level atom},
author = {Horbatsch, M. and Hessels, E. A.},
abstractNote = {In a recent paper [Phys. Rev. A 82, 052519 (2010)], the systematic shifts of a resonance due to quantum-mechanical interference from a distant neighboring resonance were derived. In that paper, the simplest three-level closed system was used to calculate analytic expressions for shifts in the resonant line centers. Here, we extend the analysis to the more relevant four-level system, which consists of two ground states and two excited states and which incorporates the physics of dark states. The shifts are shown to depend on the type of experiment performed and can be much larger than the shifts for the three-level system. The analytic formulas obtained are applied to the {sup 23}S-to-{sup 23}P transitions in atomic helium, where significant shifts are found.},
doi = {10.1103/PHYSREVA.84.032508},
journal = {Physical Review. A},
issn = {1050-2947},
number = 3,
volume = 84,
place = {United States},
year = {2011},
month = {9}
}