47 citations · 196 across the 15 of their papers we have counts for
9 papers · 1 filter
Production and spectroscopy of cold radioactive molecules
Chandler J. Conn, Phelan Yu, Madison I. Howard +8
Molecules with heavy, radioactive nuclei promise extreme sensitivity to fundamental nuclear and particle physics. However, these nuclei are available in limited quantities, which c…
Relativistic Exact Two-Component Coupled-Cluster Study of Molecular Sensitivity Factors for Nuclear Schiff Moments
Tianxiang Chen, Chaoqun Zhang, Lan Cheng +12
Relativistic exact two-component coupled-cluster calculations of molecular sensitivity factors for nuclear Schiff moments (NSMs) are reported. We focus on molecules containing heav…
Blackbody thermalization and vibrational lifetimes of trapped polyatomic molecules
Nathaniel B. Vilas, Christian Hallas, Loïc Anderegg +5
We study the internal state dynamics of optically trapped polyatomic molecules subject to room temperature blackbody radiation. Using rate equations that account for radiative deca…
Optical Trapping of a Polyatomic Molecule in an -Type Parity Doublet State
Christian Hallas, Nathaniel B. Vilas, Loïc Anderegg +5
We report optical trapping of a polyatomic molecule, calcium monohydroxide (CaOH). CaOH molecules from a magneto-optical trap are sub-Doppler laser cooled to in f…
Vibronic branching ratios for nearly-closed rapid photon cycling of SrOH
Zack Lasner, Annika Lunstad, Chaoqun Zhang +2
The vibrational branching ratios of SrOH for radiative decay to the ground electronic state, , from the first two electronically excited states, and $B^{2}Σ^{+…
Inner-shell excitation in the YbF molecule and its impact on laser cooling
Chi Zhang, Chaoqun Zhang, Lan Cheng +2
The YbF molecule is a sensitive system for measuring the electron's electric dipole moment. The precision of this measurement can be improved by direct laser cooling of the molecul…
Calculations of Time-Reversal Symmetry Violation Sensitivity Parameters Based on Analytic Relativistic Coupled-Cluster Gradient Theory
Chaoqun Zhang, Xuechen Zheng, Lan Cheng
We develop an analytic-gradient based method for relativistic coupled-cluster calculations of effective electric field, , with improved efficiency and rob…
Accurate prediction and measurement of vibronic branching ratios for laser cooling linear polyatomic molecules
Chaoqun Zhang, Benjamin L. Augenbraun, Zack D. Lasner +3
We report a generally applicable computational and experimental approach to determine vibronic branching ratios in linear polyatomic molecules to the level, including for…
Branching ratios, radiative lifetimes and transition dipole moments for YbOH
Ephriem Tadesse Mengesha, Anh T. Le, Timothy C. Steimle +5
Medium resolution ( ~ 3 GHz) laser-induced fluorescence (LIF) excitation spectra of a rotationally cold sample of YbOH in the 17300-17950 cm range have been recorded usi…