Magnetic-Field Imaging of Weakly Bound Levels of the Ground-State Na2 Dimer

Published

February 1, 2002

Author(s)

T Laue, Eite Tiesinga, C Samuelis, H Knockel, E Tiemann

Abstract

We measured in a molecular beam experiment the magnetic field dependence of the last bound levels of the X¹Σg⁺ and a³Σ⁺u potentials close to the 3s+3s asymptote of Na₂. The field behavior of these levels in an external magnetic field differs for even or odd nuclear mechanical angular momentum. Coupled channel calculations using high precision potentials for the X¹Σg⁺ and a³Σ⁺u potentials gives excellent quantitative agreement between experiment and theory. Our data leads to a precise and quantitative description of the magnetic decoupling of the singlet and triplet manifold and of Feshbach resonances in a cold atomic collision.

Citation

Physical Review A (Atomic, Molecular and Optical Physics)

Volume

65

Issue

No. 2

Pub Type

Journals

Keywords

Feshbach resonances, molecular beams, Na dimer, spectroscopy

Citation

Laue, T. , Tiesinga, E. , Samuelis, C. , Knockel, H. and Tiemann, E. (2002), Magnetic-Field Imaging of Weakly Bound Levels of the Ground-State Na₂ Dimer, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed October 24, 2025)