Transition strength measurements to guide magic wavelength selection in optically trapped molecules

Abstract

Optical trapping of molecules with long coherence times is crucial for many protocols in quantum information and metrology. However, the factors that limit the lifetimes of the trapped molecules remain elusive and require improved understanding of the underlying molecular structure. Here we show that measurements of vibronic line strengths in weakly and deeply bound ${}^{88}$Sr${}_2$ molecules, combined with \textit{ab initio} calculations, allow for unambiguous identification of vibrational quantum numbers. This, in turn, enables the construction of refined excited potential energy curves that inform the selection of magic wavelengths which facilitate long vibrational coherence. We demonstrate Rabi oscillations between far-separated vibrational states that persist for nearly 100 ms.

References in corpus (37)

• A toolbox for lattice spin models with polar molecules
• Cold molecules: Progress in Quantum Engineering of Chemistry and Quantum Matter
• Precision Measurement of Time-Reversal Symmetry Violation with Laser-Cooled Polyatomic Molecules
• Ultracold molecules for measuring the electron's electric dipole moment
• Dipolar Exchange Quantum Logic Gate with Polar Molecules
• Direct observation of bimolecular reactions of ultracold KRb molecules
• Ultra-precise measurement of optical frequency ratios
• Ultracold molecules for quantum simulation: rotational coherences in CaF and RbCs
• Operational Magic Intensity for Sr Optical Lattice Clocks
• Narrow Line Photoassociation in an Optical Lattice
• Precise study of asymptotic physics with subradiant ultracold molecules
• A Scalable Quantum Computing Platform Using Symmetric-Top Molecules
• Molecular lattice clock with long vibrational coherence
• Optical Production of Stable Ultracold ${}^{88}$Sr${}_2$ Molecules
• A robust entangling gate for polar molecules using magnetic and microwave fields
• Precision frequency measurement of visible intercombination lines of strontium
• Accurate calculations of Sr properties for a high-accuracy optical clock
• Photodissociation of ultracold diatomic strontium molecules with quantum state control
• Extending rotational coherence of interacting polar molecules in a spin-decoupled magic trap
• Dipolar quantum logic for freely-rotating trapped molecular ions
• The ^1S+^1S asymptote of Sr_2 studied by Fourier-transform spectroscopy
• Rovibrational dynamics of the strontium molecule in the A^1Σ_u^+, c^3Π_u, and a^3Σ_u^+ manifold from state-of-the-art ab initio calculations
• Lattice-induced photon scattering in an optical lattice clock
• Measurement of the variation of electron-to-proton mass ratio using ultracold molecules produced from laser-cooled atoms
• Engineering Quantum States of Matter for Atomic Clocks in Shallow Optical Lattices
• Dipolar Collisions of Ultracold Ground-state Bosonic Molecules
• Two-Photon Pathway to Ultracold Ground State Molecules of ${}^{23}$Na${}^{40}$K
• Mass scaling and non-adiabatic effects in photoassociation spectroscopy of ultracold strontium atoms
• Thermometry via Light Shifts in Optical Lattices
• Efficient production of long-lived ultracold Sr${}_2$ molecules
• Tune-out and magic wavelengths for ground-state ${}^{23}$Na${}^{40}$K molecules
• High-precision spectroscopy of ultracold molecules in an optical lattice
• High-bandwidth transfer of phase stability through a fiber frequency comb
• Two-photon vibrational transitions in ${\mathrm{O}}_2^{+}$ as probes of variation of the proton-to-electron mass ratio
• High Resolution Molecular Spectroscopy for Producing Ultracold Absolute Ground-State ${}^{23}$Na${}^{87}$Rb Molecules
• Relativistic calculations of $C_6$ and $C_8$ coefficients for strontium dimers
• Predicting and verifying transition strengths from weakly bound molecules

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• Quantum control of molecules for fundamental physics
• Tune-out and magic wavelengths for ground-state ${}^{23}$Na${}^{40}$K molecules
• A terahertz vibrational molecular clock with systematic uncertainty at the $10^{-14}$ level
• Ultracold ${}^{88}{\mathrm{Sr}}_2$ molecules in the absolute ground state
• Accurate Determination of Blackbody Radiation Shifts in a Strontium Molecular Lattice Clock
• Narrowline Laser Cooling and Spectroscopy of Molecules via Stark States