Details
| Original language | English |
|---|---|
| Article number | 043422 |
| Journal | Physical Review A |
| Volume | 95 |
| Issue number | 4 |
| Publication status | Published - 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 subject areas
- Physics and Astronomy(all)
- Atomic and Molecular Physics, and Optics
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Physical Review A, Vol. 95, No. 4, 043422, 25.04.2017.
Research output: Contribution to journal › Article › Research › 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 -