Relativistic unitary coupled-cluster study of the electric quadrupole moment and magnetic dipole hyperfine constants of H199g+

Chiranjib Sur and Rajat K. Chaudhuri
Phys. Rev. A 76, 032503 – Published 14 September 2007

Abstract

Searching for an accurate optical clock which can serve as a better time standard than the present-day atomic clock is highly demanding from several areas of science and technology. Several attempts have been made to build more accurate clocks with different ion species. In this paper, we discuss the electric quadrupole and hyperfine shifts in the 5d96s2D252(F=0,mF=0)5d106sS212(F=2,mF=0) clock transition in H199g+, one of the most promising candidates for next-generation optical clocks. We have applied Fock-space unitary coupled-cluster theory to study the electric quadrupole moment of the 5d96s2D252 state and magnetic dipole hyperfine constants of 5d96s2D232,52 and 5d106s1S212 states, respectively, of H199g+. We have also compared our results with available data. To the best of our knowledge, this is the first time a variant of coupled-cluster theories has been applied to study these kinds of properties of Hg+ and is the most accurate estimate of these quantities to date.

  • Figure
  • Figure
  • Received 8 May 2007

DOI:https://doi.org/10.1103/PhysRevA.76.032503

©2007 American Physical Society

Authors & Affiliations

Chiranjib Sur*

  • Department of Astronomy, The Ohio State University, Columbus, Ohio 43210, USA

Rajat K. Chaudhuri

  • Indian Institute of Astrophysics, Koramangala, Block II, Bangalore 560 034, India

  • *csur@astronomy.ohio-state.edu; http://www.astronomy.ohio-state.edu/̃csur

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Issue

Vol. 76, Iss. 3 — September 2007

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