2016/08/10 by Philip D. Gregory, J. Aldegunde, Jesus Aldegunde +2 · 2 citations
Computer Science · Mathematics · Physics and Astronomy · #Algorithm #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Ground state #Hyperfine coupling #Hyperfine structure #Mathematics #Microwave #Molecule #Physics #Population #Quantum Information and Cryptography #Quantum mechanics #Quantum optics and atomic interactions #State (computer science) #cond-mat.quant-gas #physics.atom-ph #quant-ph
paper · pdf · doi:10.1103/physreva.94.041403
published as Phys. Rev. A 94, 041403 (2016) · 6 pages, 3 figures, 2 tables
arxiv created 2016/08/10 · openalex created_date 2016/09/16 · openalex publication_date 2016/10/28 · arxiv updated 2016/11/02 · openalex updated_date 2026/08/05
We demonstrate coherent control of the rotational and hyperfine state of ultracold, chemically stable 87Rb133Cs molecules with external microwave fields. We create a sample of \ensuremath∼2000 molecules in the lowest hyperfine level of the rovibronic ground state N=0. We measure the transition frequencies to eight different hyperfine levels of the N=1 state at two magnetic fields \ensuremath∼23 G apart. We determine accurate values of rotational and hyperfine coupling constants that agree well with previous calculations. We observe Rabi oscillations on each transition, allowing complete population transfer to a selected hyperfine level of N=1. Subsequent application of a second microwave pulse allows the transfer of molecules back to a different hyperfine level of N=0.