High-Efficiency Quantum-State Detection of ThF${}^{+}$ with Resonance-Enhanced Multiphoton Asymmetric Dissociation

Abstract

Efficient quantum-state detection is crucial for many precision control experiments, such as the ongoing effort to probe the electron's electric dipole moment using trapped molecular ${}^{232}{\mathrm{ThF}}^{+}$ ions at JILA. While quantum state detection through state-selective photodissociation has been successfully implemented on this molecule, progress has been hindered by low dissociation efficiency. In this work, we perform spectroscopy on the molecule to identify excited states that facilitate more efficient photodissociation. For the most favorable transition, we achieve a dissociation efficiency of 57(14)% with quantum state selectivity. Additionally, we discuss several state detection protocols that leverage favorable excited states that will facilitate simultaneous readout of all EDM relevant states, allowing further improvement of overall statistics.

References in corpus (30)

• Electric dipole moments as probes of new physics
• Measurement of the permanent electric dipole moment of the neutron
• Electric Dipole Moments of Nucleons, Nuclei, and Atoms: The Standard Model and Beyond
• Electric Dipole Moments of the Atoms, Molecules, Nuclei and Particles
• A precision measurement of the electron's electric dipole moment using trapped molecular ions
• Reduced Limit on the Permanent Electric Dipole Moment of ${}^{199}$Hg
• A new bound on the electron's electric dipole moment
• Lasercooled RaF as a promising candidate to measure molecular parity violation
• Spectroscopy of short-lived radioactive molecules: A sensitive laboratory for new physics
• Quantum sensing with atomic, molecular, and optical platforms for fundamental physics
• Prospects for an electron electric dipole moment search in metastable ThO and ThF${}^{+}$
• Improved limit on the ${}^{225}$Ra electric dipole moment
• Quantum state manipulation and cooling of ultracold molecules
• New Limit on the Permanent Electric Dipole Moment of ${}^{129}$Xe using ${}^3$He Comagnetometry and SQUID Detection
• Interpreting the Electron EDM Constraint
• Opportunities for Fundamental Physics Research with Radioactive Molecules
• Theoretical study of ThF${}^{+}$ in the search for T,P-violation effects: Effective state of a Th atom in ThF${}^{+}$ and ThO compounds
• Photodissociation of ultracold diatomic strontium molecules with quantum state control
• Search for the electron electric dipole moment using $\Omega$-doublet levels in PbO${}^{\ast }$
• Leak-out Spectroscopy, a universal method of action spectroscopy in cold ion traps
• Enhanced nuclear Schiff moment and time reversal violation in 229Th-containing molecules
• Broadband velocity modulation spectroscopy of ThF${}^{+}$ for use in a measurement of the electron electric dipole moment
• Measurement of the Electric Dipole Moment of ${}^{171}$Yb Atoms in an Optical Dipole Trap
• Prospects for assembling ultracold radioactive molecules from laser-cooled atoms
• Second-Scale Coherence Measured at the Quantum Projection Noise Limit with Hundreds of Molecular Ions
• Spectroscopy on the eEDM-sensitive states of ThF${}^{+}$
• Systematic and statistical uncertainty evaluation of the HfF${}^{+}$ electron electric dipole moment experiment
• Visible and Ultraviolet Laser Spectroscopy of ThF
• Relativistic Exact Two-Component Coupled-Cluster Study of Molecular Sensitivity Factors for Nuclear Schiff Moments
• Experimental and Theoretical Investigation of the Crossover from the Ultracold to the Quasiclassical Regime of Photodissociation