Optical Production of Stable Ultracold ${}^{88}$Sr${}_2$ Molecules

Abstract

We have produced large samples of ultracold ${}^{88}$Sr${}_2$ molecules in the electronic ground state in an optical lattice. The molecules are bound by 0.05 cm${}^{-1}$ and are stable for several milliseconds. The fast, all-optical method of molecule creation via intercombination line photoassociation relies on a near-unity Franck-Condon factor. The detection uses a weakly bound vibrational level corresponding to a very large dimer. This is the first of two steps needed to create Sr${}_2$ in the absolute ground quantum state. Lattice-trapped Sr${}_2$ is of interest to frequency metrology and ultracold chemistry.

5 pages, 3 figures

References in corpus (11)

• A High Phase-Space-Density Gas of Polar Molecules
• Ultracold Molecules in the Ro-Vibrational Triplet Ground State
• Precision Test of Mass Ratio Variations with Lattice-Confined Ultracold Molecules
• Enhanced sensitivity to variation of $m_e/m_p$ in molecular spectra
• Creation of ultracold Sr2 molecules in the electronic ground state
• Narrow Line Photoassociation in an Optical Lattice
• Two-photon photoassociative spectroscopy of ultracold 88-Sr
• 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
• Fourier-transform spectroscopy of Sr2 and revised ground state potential
• Prospects for application of ultracold Sr${}_2$ molecules in precision measurements
• Formation of deeply bound ultracold Sr_2 molecules by photoassociation near the ^1S + ^3P_1 intercombination line

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