Zobrazeno 1 - 10
of 35
pro vyhledávání: '"Allehabi, Saleh O."'
We identify two metastable excited states in Sm$ ^{10+} $ highly charged ion as candidates for high accuracy optical clocks. Several atomic properties relevant to optical clock development are calculated using relativistic many-body methods. This inc
Externí odkaz:
http://arxiv.org/abs/2404.00854
Our study is motivated by the prospect of several metastable states in the Sb$ ^{+} $, Au$ ^{+} $, and Hg$ ^{2+} $ ions being used as possible candidates for optical clocks. We calculate several atomic properties relevant to the development of optica
Externí odkaz:
http://arxiv.org/abs/2303.17456
Publikováno v:
Phys. Rev. A 107, 032805 (2023)
A recently developed version of the configuration interaction (CI) method for open shells with a large number of valence electrons has been used to study two heavy atoms, californium (Cf, Z= 98) and einsteinium (Es, Z= 99). Motivated by experimental
Externí odkaz:
http://arxiv.org/abs/2301.03154
Publikováno v:
Phys. Rev. A 106, 043101 (2022)
We identify laser-accessible transitions in group 16-like highly charged ions as candidates for high-accuracy optical clocks, including S-, Se-, and Te-like systems. For this class of ions, the ground $^{3}P_{J}$ fine structure manifold exhibits irre
Externí odkaz:
http://arxiv.org/abs/2207.13407
Publikováno v:
Phys. Rev. A 106, 032807 (2022)
We demonstrate that several metastable excited states in Hf$~$II, Hf$~$IV and W$~$VI ions may be good clock states since they are sufficiently long-living and are not sensitive to the perturbations. Cooling E1 transitions are available. Energy levels
Externí odkaz:
http://arxiv.org/abs/2206.14026
Publikováno v:
In Journal of Quantitative Spectroscopy and Radiative Transfer December 2024 328
Publikováno v:
Phys. Rev. A 104, 052811 (2021)
Energy levels, magnetic dipole, and electric quadrupole hyperfine structure of the superheavy element rutherfordium (Rf, $Z$=104) and its first three ions are calculated using a combination of the configuration interaction, coupled-cluster single-dou
Externí odkaz:
http://arxiv.org/abs/2109.13716
Publikováno v:
Phys. Rev. A 104, 053109 (2021)
We study the $^1$S$_0 - ^3$D$_2$ and $^1$S$_0 - ^3$D$_3$ transitions in Cu II and the $^1$S$_0 - ^3$P$^{\rm o}_2$ transition in Yb III as possible candidates for the optical clock transitions. A recently developed version of the configuration (CI) me
Externí odkaz:
http://arxiv.org/abs/2109.06623
Publikováno v:
Phys. Rev. A 103, 030801 (2021)
We perform atomic relativistic many-body calculations of the field isotope shifts and calculations of corresponding nuclear parameters for all stable even-even isotopes of Yb$^+$ ion. We demonstrate that if we take nuclear parameters of the Yb isotop
Externí odkaz:
http://arxiv.org/abs/2012.04043
Publikováno v:
Phys. Rev. A 103, 022822 (2021)
We study the prospects of using the electric quadrupole transitions from the ground states of Cu, Ag and Au to the metastable state $^2{\rm D}_{5/2}$ as clock transitions in optical lattice clocks. We calculate lifetimes, transition rates, systematic
Externí odkaz:
http://arxiv.org/abs/2006.14735