Molecular assembly of ground state cooled single atoms

Abstract

We demonstrate full quantum state control of two species of single atoms using optical tweezers and assemble the atoms into a molecule. Our demonstration includes 3D ground-state cooling of a single atom (Cs) in an optical tweezer, transport by several microns with minimal heating, and merging with a single Na atom. Subsequently, both atoms occupy the simultaneous motional ground state with 61(4)\% probability. This realizes a sample of exactly two co-trapped atoms near the phase-space-density limit of one, and allows for efficient stimulated-Raman transfer of a pair of atoms into a molecular bound state of the triplet electronic ground potential $a^3{\Sigma }^{+}$. The results are key steps toward coherent creation of single ultracold molecules, for future exploration of quantum simulation and quantum information processing.

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Cited by in corpus (4)

• Assembly of a rovibrational ground state molecule in an optical tweezer
• Magic Conditions for Multiple Rotational States of Bialkali Molecules in Optical Lattices
• Laser control of ultracold molecule formation: The case of RbSr
• A general approach to state-dependent optical tweezer traps for polar molecules