36 citations · 223 across the 21 of their papers we have counts for
14 papers · 1 filter
A Hunt for Highly Charged Ions as Ultra-stable Optical Clock Candidates: Art of the energy level-crossing approach
Yan-mei Yu, B. K. Sahoo
We examine energy level-crossings of fine-structure (FS) levels in the heavier highly charged ions (HCIs) with and configurations. From the analysis, we find that some…
Highly Charged Ion (HCI) Clocks: Frontier candidates for testing variation of fine-structure constant
Yan-Mei Yu, B. K. Sahoo, Bing-Bing Suo
Attempts are made to unify gravity with the other three fundamental forces of nature. As suggested by higher dimensional models, this unification may require space and time variati…
A New Clock Transition with the Highest Sensitivity to Variation and Simultaneous Magic Trapping Conditions with Other Clock Transitions in Yb
Zhi-Ming Tang, Yan-mei Yu, B. K. Sahoo +3
Optical lattice clocks are the prospective devices that can probe many subtle physics including temporal variation of the fine structure constant (). These studies necessitate…
Highly charged Nd Ion: A potential candidate of $\upmu$Hz linewidth optical clocks for probing fundamental physics
Yan-mei Yu, Duo Pan, Shaolong Chen +3
An active optical clock based on highly charged Nd ion is proposed for the first time. The clock can offer ultra-narrow linewidth at the $\upmu$Hz-level which is more than t…
Optical-lattice based Cs active clock with continual superradiant lasing signal
Duo Pan, Bindiya Arora, Yan-mei Yu +2
We demonstrate state-of-the-art technique of an active clock to provide a continuous superradiant lasing signal using an ensemble of trapped Cs atoms in the optical lattice. A magi…
Dipole Polarizability Calculation of Cd Atom: Inconsistency with experiment
B. K. Sahoo, Yan-mei Yu
Three earlier relativistic coupled-cluster (RCC) calculations of dipole polarizability () of the Cd atom are not in good agreement with the available experimental value of $49…
Relativistic coupled-cluster theory analysis of energies, hyperfine structure constants, and dipole polarizabilities of Cd
Cheng-Bin Li, Yan-Mei Yu, B. K. Sahoo
Roles of electron correlation effects in the determination of attachment energies, magnetic dipole hyperfine structure constants and electric dipole (E1) matrix elements of the low…
Selective highly charged ions as the prospective optical clock candidates with quality factors larger than
Yan-mei Yu, B. K. Sahoo
We propose here a few selective highly charged ions (HCIs), namely Ni and Cu, Pd and Ag, that not only promise to be very high accurate optical cloc…
Magic wavelengths for the transition in ytterbium atom
Zhi-Ming Tang, Yan-Mei Yu, Jun Jiang +1
The static and dynamic electric-dipole polarizabilities of the and states of Yb are calculated by using the relativistic ab initio method. Focusing on…
Estimation of BBR shift due to Stark effect for the Microwave Cd Ion Clock
Yan-mei Yu, B. K. Sahoo
The microwave clock frequency of the transition in the Cd ion has been reported as 1…
Transition rates and radiative lifetimes of Ca I
Yanmei Yu, Andrei Derevianko
We tabulate spontaneous emission rates for all possible 811 electric-dipole-allowed transitions between the 75 lowest-energy states of Ca I. These involve the (), $4s…
Improved magneto-optical trapping of Ca
Michael Mills, Prateek Puri, Yanmei Yu +3
We investigate the limiting factors in the standard implementation of the Ca magneto-optical trap. We find that intercombination transitions from the 4s5p 1P1 state used to repump…
Finite field calculations of static polarizabilities and hyperpolarizabilities of In and Sr
Yan-mei Yu, Bing-bing Suo, Hui-hui Feng +2
The finite field calculations are performed for two heavy frequency-standard candidates In and Sr. The progressive hierarchy of electron correlations is implemented by the rela…
Finite-field calculation of the polarizabilities and hyperpolarizabilities of Al
Yan-mei Yu, Bing-bing Suo, Heng Fan
In this study, accurate static dipole polarizability and hyperpolarizability are calculated for Al ground state 3s S and excited state P wi…