Hyperfine, rotational, and Zeeman structure of the lowest vibrational levels of theRb872(1)3Σg+state

Autor: F. Lang, C. Strauss, J. Hecker Denschlag, Marius Lysebo, Tetsu Takekoshi, L. Veseth
Rok vydání: 2011
Předmět:
Zdroj: Physical Review A. 83
ISSN: 1094-1622
1050-2947
DOI: 10.1103/physreva.83.062504
Popis: We present the results of an experimental and theoretical study of the electronically excited $(1){}^{3}{\ensuremath{\Sigma}}_{\mathrm{g}}^{+}$ state of $^{87}\mathrm{Rb}$${}_{2}$ molecules. The vibrational energies are measured for deeply bound states from the bottom up to ${v}^{\ensuremath{'}}=15$ using laser spectroscopy of ultracold Rb${}_{2}$ Feshbach molecules. The spectrum of each vibrational state is dominated by a 47-GHz splitting into ${0}_{\mathrm{g}}^{\ensuremath{-}}$ and ${1}_{\mathrm{g}}$ components caused mainly by a strong second-order spin-orbit interaction. Our spectroscopy fully resolves the rotational, hyperfine, and Zeeman structure of the spectrum. We are able to describe this structure to the first order using a simplified effective Hamiltonian.
Databáze: OpenAIRE