Modeling the adiabatic creation of ultracold, polar ${}^{23}\mathrm{N}{\mathrm{a}}^{40}\mathrm{K}$ molecules

Abstract

In this work we model and realize stimulated Raman adiabatic passage (STIRAP) in the diatomic ${}^{23}\mathrm{N}{\mathrm{a}}^{40}\mathrm{K}$ molecule from weakly bound Feshbach molecules to the rovibronic ground state via the $|v_d=5,J=\Omega =1⟩$ excited state in the $d^3\Pi$ electronic potential. We demonstrate how to set up a quantitative model for polar molecule production by taking into account the rich internal structure of the molecules and the coupling laser phase noise. We find excellent agreement between the model predictions and the experiment, demonstrating the applicability of the model in the search of an ideal STIRAP transfer path. In total we produce 5000 fermionic groundstate molecules. The typical phase-space density of the sample is 0.03 and induced dipole moments of up to 0.54 Debye could be observed.

7 pages, 5 figures Version 2: Fixed a few typos, elaborated more on the differences between different choices of intermediate state, clarified Hönl-London factor, added a intuitive explanation of the benefits of detuned STIRAP, elaborated on realized dipole moments in diatomics, compared phase-space density reducing processes in the whole molecule creation process, added two more references

References in corpus (5)

• A High Phase-Space-Density Gas of Polar Molecules
• Ultracold dense samples of dipolar RbCs molecules in the rovibrational and hyperfine ground state
• Ultracold Dipolar Gas of Fermionic ${}^{23}$Na${}^{40}$K Molecules in their Absolute Ground State
• Creation of ultracold ${}^{87}$RbCs molecules in the rovibrational ground state
• Quantum Engineering of a Low-Entropy Gas of Heteronuclear Bosonic Molecules in an Optical Lattice

Cited by in corpus (40)

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• Ultracold Gas of Dipolar NaCs Ground State Molecules
• Microwave shielding of bosonic NaRb molecules
• Evidence for association of triatomic molecule in ultracold ${}^{23}$Na${}^{40}$K and ${}^{40}$K mixture
• Magnetic Feshbach resonances in collisions of ${}^{23}$Na${}^{40}$K with ${}^{40}$K
• Observation of interference between resonant and detuned STIRAP in the adiabatic creation of ${}^{23}$Na${}^{40}$K molecules
• Effective potential and superfluidity of microwave-dressed polar molecules
• Seconds-scale coherence on nuclear spin transitions of ultracold polar molecules in 3D optical lattices
• Preparation of one ${}^{87}$Rb and one ${}^{133}$Cs atom in a single optical tweezer
• Efficient conversion of closed-channel dominated Feshbach molecules of ${}^{23}$Na${}^{40}$K to their absolute ground state
• Ultracold ${}^{88}{\mathrm{Sr}}_2$ molecules in the absolute ground state
• High-fidelity multistate STIRAP assisted by shortcut fields
• Complexes formed in collisions between ultracold alkali-metal diatomic molecules and atoms
• Magic Conditions for Multiple Rotational States of Bialkali Molecules in Optical Lattices
• Resonant and first-order dipolar interactions between ultracold molecules in static and microwave electric fields
• Resonant control of elastic collisions between ${}^{23}$Na${}^{40}$K molecules and ${}^{40}$K atoms
• Supersolid phases of lattice dipoles tilted in three-dimensions
• Preparation of a quantum degenerate mixture of ${}^{23}$Na${}^{40}$K molecules and ${}^{40}$K atoms
• Ab initio calculation of the spectrum of Feshbach resonances in NaLi + Na collisions
• Efficient Pathway to NaCs Ground State Molecules
• Enhanced quantum state transfer via feedforward cancellation of optical phase noise
• High-resolution 'magic'-field spectroscopy on trapped polyatomic molecules
• Long distance optical conveyor-belt transport of ultracold ${}^{133}$Cs and ${}^{87}$Rb atoms
• Anisotropic Polarizability of Ultracold Ground-state ${}^{23}$Na${}^{87}$Rb Molecules
• A pathway to ultracold bosonic ${}^{23}{\text{Na}}^{39}\text{K}$ ground state molecules
• Interaction potential for NaCs for ultracold scattering and spectroscopy
• Temperature-Dependent Contact of Weakly Interacting Single-Component Fermi Gases and Loss Rate of Degenerate Polar Molecules
• The iSWAP gate with polar molecules: Robustness criteria for entangling operations
• Highly Efficient Creation and Detection of Ultracold Deeply-Bound Molecules via Chainwise Stimulated Raman Shortcut-to-Adiabatic Passage
• Resonances in non-universal dipolar collisions
• Intercombination line photoassociation spectroscopy of ${}^{87}$Rb${}^{170}$Yb
• Study of excited electronic states of the ${}^{39}$KCs molecule correlated with the K($4^2$S)+Cs($5^2$D) asymptote: experiment and theory
• Genetics-based deperturbation analysis for the spin-orbit coupled ${\mathrm{A}}^1{\Sigma }^{+}$ and ${\mathrm{b}}^3{\Pi }_{0^{+}}$ states of LiRb
• Exact Thermodynamics For Weakly Interacting Normal-Phase Quantum Gases: Equations of State For All Partial Waves
• Lossy Quantum Defect Theory of Ultracold Molecular Collisions
• Molecule-molecule and atom-molecule collisions with ultracold RbCs molecules
• Feedforward Cancellation of High-Frequency Phase Noise in Frequency-Doubled Lasers
• Ab initio study of the reactivity of ultracold RbSr$+$RbSr collisions