Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | 043422 |
| Fachzeitschrift | Physical Review A |
| Jahrgang | 95 |
| Ausgabenummer | 4 |
| Publikationsstatus | Veröffentlicht - 25 Apr. 2017 |
Abstract
By two-color photoassociation of Ca40 four weakly bound vibrational levels in the Ca2 X1Σg+ ground-state potential were measured, using highly spin-forbidden transitions to intermediate states of the coupled system Π3u and Σ3u+ near the P31+S10 asymptote. From the observed binding energies, including the least bound state, the long-range dispersion coefficients C6,C8,C10 and a precise value for the s-wave scattering length of 308.5(50)a0 were derived. From mass scaling we also calculated the corresponding scattering length for other natural isotopes. From the Autler-Townes splitting of the spectra, the molecular Rabi frequency has been determined as a function of the laser intensity for one bound-bound transition. The observed value for the Rabi frequency is in good agreement with calculated transition moments based on the derived potentials, assuming a dipole moment being independent of internuclear separation for the atomic pair model.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Atom- und Molekularphysik sowie Optik
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in: Physical Review A, Jahrgang 95, Nr. 4, 043422, 25.04.2017.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Ground-state properties of Ca2 from narrow-line two-color photoassociation
AU - Pachomow, Evgenij
AU - Dahlke, Veit Peter
AU - Tiemann, Eberhard
AU - Riehle, Fritz
AU - Sterr, Uwe
PY - 2017/4/25
Y1 - 2017/4/25
N2 - By two-color photoassociation of Ca40 four weakly bound vibrational levels in the Ca2 X1Σg+ ground-state potential were measured, using highly spin-forbidden transitions to intermediate states of the coupled system Π3u and Σ3u+ near the P31+S10 asymptote. From the observed binding energies, including the least bound state, the long-range dispersion coefficients C6,C8,C10 and a precise value for the s-wave scattering length of 308.5(50)a0 were derived. From mass scaling we also calculated the corresponding scattering length for other natural isotopes. From the Autler-Townes splitting of the spectra, the molecular Rabi frequency has been determined as a function of the laser intensity for one bound-bound transition. The observed value for the Rabi frequency is in good agreement with calculated transition moments based on the derived potentials, assuming a dipole moment being independent of internuclear separation for the atomic pair model.
AB - By two-color photoassociation of Ca40 four weakly bound vibrational levels in the Ca2 X1Σg+ ground-state potential were measured, using highly spin-forbidden transitions to intermediate states of the coupled system Π3u and Σ3u+ near the P31+S10 asymptote. From the observed binding energies, including the least bound state, the long-range dispersion coefficients C6,C8,C10 and a precise value for the s-wave scattering length of 308.5(50)a0 were derived. From mass scaling we also calculated the corresponding scattering length for other natural isotopes. From the Autler-Townes splitting of the spectra, the molecular Rabi frequency has been determined as a function of the laser intensity for one bound-bound transition. The observed value for the Rabi frequency is in good agreement with calculated transition moments based on the derived potentials, assuming a dipole moment being independent of internuclear separation for the atomic pair model.
UR - http://www.scopus.com/inward/record.url?scp=85018322494&partnerID=8YFLogxK
U2 - 10.48550/arXiv.1702.00710
DO - 10.48550/arXiv.1702.00710
M3 - Article
AN - SCOPUS:85018322494
VL - 95
JO - Physical Review A
JF - Physical Review A
SN - 2469-9926
IS - 4
M1 - 043422
ER -