Molecular Assembly of Ground-State Cooled Single Atoms
| Autor: | Yichao Yu, Till Rosenband, Lee R. Liu, Jianhua Zhang, Kenneth Wang, Yen-Wei Lin, Kang-Kuen Ni, J. D. Hood |
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| Rok vydání: | 2019 |
| Předmět: |
Chemical Physics (physics.chem-ph)
Condensed Matter::Quantum Gases Physics Atomic Physics (physics.atom-ph) QC1-999 FOS: Physical sciences General Physics and Astronomy 01 natural sciences 7. Clean energy Molecular physics Physics - Atomic Physics 010305 fluids & plasmas Quantum Gases (cond-mat.quant-gas) Quantum state Physics - Chemical Physics 0103 physical sciences Molecule Physics::Atomic Physics Condensed Matter - Quantum Gases 010306 general physics Ground state |
| Zdroj: | Physical Review X, Vol 9, Iss 2, p 021039 (2019) |
| ISSN: | 2160-3308 |
| DOI: | 10.1103/physrevx.9.021039 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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