Production and State-Selective Detection of Ultracold RbCs Molecules

2004/02/29 by Andrew J. Kerman, Jeremy Sage, Jeremy M. Sage +3 · 2 citations
Computer Science · Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Quantum Information and Cryptography #physics.atom-ph #physics.chem-ph

paper · pdf · doi:10.1103/physrevlett.92.153001

arxiv created 2004/03/15 · openalex publication_date 2004/04/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30

Abstract

Using resonance-enhanced two-photon ionization, we detect ultracold, metastable RbCs molecules formed in their lowest triplet state a ³\ensuremathΣ⁺ via photoassociation in a laser-cooled mixture of ⁸⁵Rb and ¹³³Cs atoms. We obtain extensive bound-bound excitation spectra of these molecules, which provide detailed information about their vibrational distribution, as well as spectroscopic data on several RbCs molecular states including a ³\ensuremathΣ⁺, (2) ³\ensuremathΣ⁺, and (1) ¹\ensuremathΠ. Analysis of this data allows us to predict strong transitions from observed levels to the absolute vibronic ground state of RbCs, potentially allowing the production of stable, ultracold polar molecules at rates in excess of 10⁶ s^\ensuremath-1.

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