Radio Frequency Magneto-Optical Trapping of CaF with High Density

Abstract

We demonstrate significantly improved magneto-optical trapping of molecules using a very slow cryogenic beam source and RF modulated and DC magnetic fields. The RF MOT confines $1.1(3)\times 10^5$ CaF molecules at a density of $4(1)\times 10^6$ cm${}^{-3}$, which is an order of magnitude greater than previous molecular MOTs. Near Doppler-limited temperatures of $340(20)$ $\mu$K are attained. The achieved density enables future work to directly load optical tweezers and create optical arrays for quantum simulation.

arXiv comment5 Pages, 4 Figures

References in corpus (25)

• A High Phase-Space-Density Gas of Polar Molecules
• Quantum computation with trapped polar molecules
• Cold and Ultracold Molecules: Science, Technology, and Applications
• A toolbox for lattice spin models with polar molecules
• Order of Magnitude Smaller Limit on the Electric Dipole Moment of the Electron
• Quantum-State Controlled Chemical Reactions of Ultracold KRb Molecules
• An atom-by-atom assembler of defect-free arbitrary 2d atomic arrays
• Laser cooling of a diatomic molecule
• Dipolar collisions of polar molecules in the quantum regime
• Strongly correlated 2D quantum phases with cold polar molecules: controlling the shape of the interaction potential
• Magneto-optical trapping of a diatomic molecule
• Magneto-optical trapping of diatomic molecules
• Schemes for robust quantum computation with polar molecules
• Creation of a low-entropy quantum gas of polar molecules in an optical lattice
• Magneto-Optical Trap for Polar Molecules
• Sub-millikelvin dipolar molecules in a radio-frequency magneto-optical trap
• Measurement of the electron's electric dipole moment using YbF molecules: methods and data analysis
• Cold Atoms and Molecules in Self-Assembled Dipolar Lattices
• Rotational state microwave mixing for laser cooling of complex diatomic molecules
• Laser slowing of CaF molecules to near the capture velocity of a molecular MOT
• Cold and Slow Molecular Beam
• An intense, cold, velocity-controlled molecular beam by frequency-chirped laser slowing
• Modeling magneto-optical trapping of CaF molecules
• Modeling sympathetic cooling of molecules by ultracold atoms
• One dimensional magneto-optical compression of a cold CaF molecular beam

Cited by in corpus (147)

• Cold molecules: Progress in Quantum Engineering of Chemistry and Quantum Matter
• Dipolar physics: A review of experiments with magnetic quantum gases
• Quantum control of molecular rotation
• An Optical Tweezer Array of Ultracold Molecules
• A Fermi Degenerate Gas of Polar Molecules
• Precision Measurement of Time-Reversal Symmetry Violation with Laser-Cooled Polyatomic Molecules
• Laser Cooling of Optically Trapped Molecules
• 3-D Magneto-Optical Trap of Yttrium Monoxide
• Ultracold molecules for measuring the electron's electric dipole moment
• Long-Lived Ultracold Molecules with Electric and Magnetic Dipole Moments
• Dipolar Exchange Quantum Logic Gate with Polar Molecules
• Magneto-Optical Trapping and Sub-Doppler Cooling of a Polyatomic Molecule
• Direct Laser Cooling of a Symmetric Top Molecule
• Robust encoding of a qubit in a molecule
• Laser-Cooled Polyatomic Molecules for Improved Electron Electric Dipole Moment Searches
• Ultracold molecules for quantum simulation: rotational coherences in CaF and RbCs
• On-Demand Entanglement of Molecules in a Reconfigurable Optical Tweezer Array
• $\Lambda$-Enhanced Imaging of Molecules in an Optical Trap
• Magnetically-Trapped Molecules Efficiently Loaded from a Molecular MOT
• Polyatomic Molecules as Quantum Sensors for Fundamental Physics
• Magnetic trapping and coherent control of laser-cooled molecules
• Collisional Cooling of Ultracold Molecules
• Controlling the scattering length of ultracold dipolar molecules
• Observation of Collisions between Two Ultracold Ground-State CaF Molecules
• Quantum state manipulation and cooling of ultracold molecules
• Sub-Doppler Cooling and Compressed Trapping of YO Molecules at $\mu$K Temperatures
• 1D Magneto-Optical Trap of Polyatomic Molecules
• Laser cooling of molecules
• Rotational Coherence Times of Polar Molecules in Optical Tweezers
• Laser cooled molecules
• Deep laser cooling and efficient magnetic compression of molecules
• Laser-coolable polyatomic molecules with heavy nuclei
• Molecular Asymmetry and Optical Cycling: Laser Cooling Asymmetric Top Molecules
• Characteristics of a magneto-optical trap of molecules
• Opportunities for Fundamental Physics Research with Radioactive Molecules
• Collisions between cold molecules in a superconducting magnetic trap
• Enhanced Sensitivity to Ultralight Bosonic Dark Matter in the Spectra of the Linear Radical SrOH
• Methods for measuring the electron EDM using ultracold YbF molecules
• A buffer gas beam source for short, intense and slow molecular pulses
• Spectroscopic characterization of aluminum monofluoride with relevance to laser cooling and trapping
• Buffer-gas cooling, high-resolution spectroscopy and optical cycling of barium monofluoride molecules
• Unravelling the stereodynamics of cold HD-H2 collisions
• Stereodynamical control of a quantum scattering resonance in cold molecular collisions
• Enhanced Yield from a Cryogenic Buffer Gas Beam Source via Excited State Chemistry
• Adimensional theory of shielding in ultracold collisions of dipolar rotors
• Microwave shielding of bosonic NaRb molecules
• High Phase-Space Density of Laser-Cooled Molecules in an Optical Lattice
• Determination of CaOH and CaOCH${}_3$ vibrational branching ratios for direct laser cooling and trapping
• Optical cycling, radiative deflection and laser cooling of barium monohydride (BaH)
• Quantum control of molecules for fundamental physics
• Polarization Enhanced Deep Optical Dipole Trapping of $\Lambda$-cooled Polar Molecules
• Functionalizing Aromatic Compounds with Optical Cycling Centers
• Direct laser cooling of calcium monohydride molecules
• Coherent Bichromatic Force Deflection of Molecules
• Accurate prediction and measurement of vibronic branching ratios for laser cooling linear polyatomic molecules
• Blue-Detuned Magneto-Optical Trap of Molecules
• Radiative deflection of a BaF molecular beam from the optical cycling
• High-resolution optical spectroscopy with a buffer-gas-cooled beam of BaH molecules
• Motional Ground State Cooling Outside the Lamb-Dicke Regime
• Prospects for laser cooling of polyatomic molecules with increasing complexity
• Blue-detuned magneto-optical trap
• Hypermetallic Polar Molecules for Precision Measurements
• Three-dimensional Magneto-optical Trapping of Barium Monofluoride
• Laser cooling and magneto-optical trapping of molecules analyzed using optical Bloch equations and the Fokker-Planck-Kramers equation
• Long rotational coherence times of molecules in a magnetic trap
• The pure rotational spectrum of YbOH
• Seconds-scale coherence on nuclear spin transitions of ultracold polar molecules in 3D optical lattices
• A laser cooling scheme for precision measurements using barium monofluoride (137Ba19F) molecules
• A Zeeman slower for diatomic molecules
• Deceleration and trapping of SrF molecules
• Cryogenic Buffer Gas beams of AlF, CaF, MgF, YbF, Al, Ca, Yb and NO -- a comparison
• Spectroscopy on the $A^1\Pi \leftarrow X^1{\Sigma }^{+}$ Transition of Buffer-Gas Cooled AlCl
• High density loading and collisional loss of laser cooled molecules in an optical trap
• Efficient conversion of closed-channel dominated Feshbach molecules of ${}^{23}$Na${}^{40}$K to their absolute ground state
• Molecular Laser-Cooling in a Dynamically Tunable Repulsive Optical Trap
• Magneto-optical trapping of a heavy polyatomic molecule for precision measurement
• Deflection of a Molecular Beam Using the Bichromatic Stimulated Force
• Emulating optical cycling centers in polyatomic molecules
• Towards improved loading, cooling, and trapping of molecules in magneto-optical traps
• Raman Sideband Cooling of Molecules in an Optical Tweezer Array
• Hyperfine resolved optical spectroscopy of the A${}^2\Pi \leftarrow$X${}^2{\Sigma }^{+}$ transition in MgF
• Fluorescence branching ratios and magnetic tuning of the visible spectrum of SrOH
• Bright, continuous beams of cold free radicals
• Three-dimensional modeling magneto-optical trapping of MgF molecule with multilevel rate equations
• Absorption spectroscopy for laser cooling and high-fidelity detection of barium monofluoride molecules
• A Blue-Detuned Magneto-Optical Trap of CaF Molecules
• Probing ultracold chemistry using ion spectrometry
• Statistical sensitivity of phase measurements via laser-induced fluorescence with optical cycling detection
• Bichromatic Imaging of Single Molecules in an Optical Tweezer Array
• Inner-shell excitation in the YbF molecule and its impact on laser cooling
• Suppressed spontaneous emission for coherent momentum transfer
• Saturated absorption spectroscopy of buffer-gas-cooled Barium monofluoride molecules
• Theoretical investigation of the HgF radical towards laser cooling and eEDM measurement
• Quantum-State-Specific Reaction Rate Measurements for the Photo-induced Reaction Ca${}^{+}$ + O${}_2$ $\to$ CaO${}^{+}$ + O
• Quantum-Enhanced Metrology for Molecular Symmetry Violation using Decoherence-Free Subspaces
• Two-Photon Spectroscopy of the NaLi Triplet Ground State
• Intensity-borrowing mechanisms pertinent to laser cooling of linear polyatomic molecules
• Magnetic tuning of ultracold barrierless chemical reactions
• Entanglement via rotational blockade of MgF molecules in a magic potential
• Fast optical transport of ultracold molecules over long distances
• Laser spectroscopy of aromatic molecules with optical cycling centers: strontium (I) phenoxides
• Simulation of Cryogenic Buffer Gas Beams
• Synthesizing Optical Spectra using Computer-Generated Holography Techniques
• Sisyphus Optical Lattice Decelerator
• Laser cooling of barium monofluoride molecules using synthesized optical spectra
• Observation of Microwave Shielding of Ultracold Molecules
• Fully saturated hydrocarbons as hosts of optical cycling centers
• A general Zeeman slower for type-II transitions and polar molecules
• Thermoviscous Hydrodynamics in Non-Degenerate Dipolar Bose Gases
• Optical stimulated slowing of polar heavy-atom molecules with a constant beat phase
• Magneto-optical trapping of aluminum monofluoride
• Anisotropic Polarizability of Ultracold Ground-state ${}^{23}$Na${}^{87}$Rb Molecules
• Simulations of a frequency-chirped magneto-optical trap of MgF
• High-resolution laser-induced fluorescence spectroscopy of ${}^{28}$Si${}^{16}$O${}^{+}$ and ${}^{29}$Si${}^{16}$O${}^{+}$ in a cryogenic buffer-gas cell
• Vibrational Branching Ratios for Laser-Cooling of Nonlinear Strontium-Containing Molecules
• Maximizing the capture velocity of molecular magneto-optical traps with Bayesian optimization
• Collisions of Spin-polarized YO Molecules for Single Partial Waves
• Characteristics of unconventional Rb magneto-optical traps
• Temperature-Dependent Contact of Weakly Interacting Single-Component Fermi Gases and Loss Rate of Degenerate Polar Molecules
• Slow molecular beams from a cryogenic buffer gas source
• Anisotropic acoustics in dipolar Fermi gases
• Microwave coherent control of ultracold ground-state molecules formed by short-range photoassociation
• Laser cooling of molecules
• Characterization of the lowest excited-state ro-vibrational level of ${}^{23}$Na${}^{87}$Rb
• Hyperfine structure of the ${\mathbf{A}}^1\mathbf{\Pi }$ state of AlCl and its relevance to laser cooling and trapping
• The iSWAP gate with polar molecules: Robustness criteria for entangling operations
• Laser Scheme for Doppler Cooling of the Hydroxyl Cation (OH${}^{+}$)
• A Model for Scattering with Proliferating Resonances: Many Coupled Square Wells
• Studying fundamental physics using quantum enabled technologies with trapped molecular ions
• Cold CH radicals for laser cooling and trapping
• An Electro-Optical Trap for Polar Molecules
• Resonator-assisted single molecule quantum state detection
• Engineering the sub-Doppler force in molecular magneto-optical traps
• DiPolMol-Py: A Python package for calculations for ${}^2\Sigma$ ground-state molecules
• The Li + CaF $\to$ Ca + LiF chemical reaction under cold conditions
• Can Nitric Oxide be Evaporatively Cooled in its Ground State?
• Magneto-Optical Trapping of a Metal Hydride Molecule
• Vibronic coupling limits the use of high-lying electronic states in complex molecules for laser cooling
• Laser Cooling Scheme for the Carbon Dimer (${}^{12}$C${}_2$)
• Microwave-assisted coherent control of ultracold polar molecules with a ladder-type rotational states
• Chemistry in a Cryogenic Buffer Gas Cell
• Single-photon loading of polar molecules into an optical trap
• Optimizing Pulsed-Laser Ablation Production of AlCl Molecules for Laser Cooling
• Automated Graph-Based Detection of Quantum Control Schemes: Application to Molecular Laser Cooling
• Narrowline Laser Cooling and Spectroscopy of Molecules via Stark States
• Parity-Doublet Coherence Times in Optically Trapped Polyatomic Molecules
• Optical pumping and laser slowing of a heavy molecule