This article discusses the spectroscopic properties of strontium dimer (Sr2) molecules and their potential applications in precision measurements. The authors present several key findings:
1. Sr2 molecules exhibit narrow photoassociation lines when cooled in an optical lattice, enabling precise spectroscopic measurements.
2. The blackbody radiation shift of atomic energy levels in Sr2 is calculated using multipolar theory, which is important for optical lattice clock applications.
3. The s-wave scattering lengths of 86Sr and 88Sr are determined experimentally, which is crucial for understanding cold collision properties.
4. The potential energy curves of Sr2 are calculated using ab initio methods, providing a detailed understanding of the molecular bonding.
5. The van der Waals coefficients for Sr2 are calculated using semiempirical methods, which are important for understanding long-range interactions.
The authors conclude that Sr2 molecules have promising applications in precision measurements, particularly in optical lattice clocks and tests of fundamental physics. The narrow photoassociation lines and well-characterized scattering properties make Sr2 an attractive candidate for these applications.
Keywords: strontium, ultracold, collisional, spectroscopy, precision
