Quantum interference effects in laser spectroscopy of muonic hydrogen, deuterium, and helium-3 Journal Article

Author(s): Amaro, Pedro; Franke, Beatrice; Krauth, Julian J; Diepold, Marc; Fratini, Filippo ; Safari, Laleh; Machado, Jorge; Antognini, Aldo; Kottmann, Franz; Indelicato, Paul; Pohl, Randolf; Santos, José P
Article Title: Quantum interference effects in laser spectroscopy of muonic hydrogen, deuterium, and helium-3
Affiliation IST Austria
Abstract: Quantum interference between energetically close states is theoretically investigated, with the state structure being observed via laser spectroscopy. In this work, we focus on hyperfine states of selected hydrogenic muonic isotopes, and on how quantum interference affects the measured Lamb shift. The process of photon excitation and subsequent photon decay is implemented within the framework of nonrelativistic second-order perturbation theory. Due to its experimental interest, calculations are performed for muonic hydrogen, deuterium, and helium-3. We restrict our analysis to the case of photon scattering by incident linear polarized photons and the polarization of the scattered photons not being observed. We conclude that while quantum interference effects can be safely neglected in muonic hydrogen and helium-3, in the case of muonic deuterium there are resonances with close proximity, where quantum interference effects can induce shifts up to a few percent of the linewidth, assuming a pointlike detector. However, by taking into account the geometry of the setup used by the CREMA collaboration, this effect is reduced to less than 0.2% of the linewidth in all possible cases, which makes it irrelevant at the present level of accuracy. © 2015 American Physical Society.
Keywords: QUANTUM THEORY; Perturbation techniques; Photons; Deuterium; Electromagnetic wave scattering; Helium; Isotopes; Laser spectroscopy; Quantum interference phenomena; Muonic deuterium; Photon excitations; Photon scattering; Polarized photons; Quantum interference; Quantum interference effects; Scattered photons; Second order perturbation theory
Journal Title: Physical Review A - Atomic, Molecular, and Optical Physics
Volume: 92
Issue 2
ISSN: 1094-1622
Publisher: American Physical Society  
Date Published: 2015-08-28
Start Page: Article number: 022514
DOI: 10.1103/PhysRevA.92.022514
Notes: This research was supported in part by Fundação para a Ciência e a Tecnologia (FCT), Portugal, through Projects No. PEstOE/FIS/UI0303/2011 and No. PTDC/FIS/117606/2010, financed by the European Community Fund FEDER through the COMPETE. P.A. and J.M. acknowledge support from the FCT (Portugal), under Contracts No. SFRH/BPD/92329/2013 and No. SFRH/BD/52332/2013. B.F., J.J.K., M.D., and R.P. acknowledge support from the European Research Council (ERC) (Belgium) through StG. Grant No. 279765. F.F. acknowledges support from the Austrian Science Fund (FWF) (Austria) through START Grant No. Y 591-N16. L.S. acknowledges financial support from the People Programme (Marie Curie Actions) of the European Union's Seventh Framework Programme (FP7/2007-2013) (Belgium) under REA Grant Agreement No. 291734. A.A. acknowledges support from Swiss National Fond (SNF) (Switzerland) Grant No. 200020_159755. B.F. and R.P. would like to thank A. Beyer, L. Meisenbacher, and Th. Udem for illuminating discussions.
Open access: yes (repository)
IST Austria Authors
  1. Laleh Safari
    7 Safari
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