Collisions of Cold Magnesium Atoms in a Weak Laser Field
M Machholm, Paul S. Julienne, K A. Suominen
We calculate the laser-induced collisional loss of laser-cooled and trapped magnesium atoms for detunings up to 30 atomic linewidths to the red of 1SO -> 1P1 cooling transition. Magnesium is an excellent test case for theoretical studies, because it can be laser cooled and yet it has no hyperfine structure to complicate the theoretical studies. The trap loss spectrum due to the dipole forbidden 1IIgabsorption from the 1Ξu ground state is excited by virtue of relativistic retardation corrections to the molecualr transition moment and can exhibit vibrational state structure even at small laser detunings. However, trap loss by the radiative escape mechanism via allowed 1XI}u excitation is dominant for more than 3 linewidths detuning.
Physical Review A (Atomic, Molecular and Optical Physics)
laser cooling, magnesium, photoassociation, trap loss collisions, ultracold atomic collisions
, Julienne, P.
and Suominen, K.
Collisions of Cold Magnesium Atoms in a Weak Laser Field, Physical Review A (Atomic, Molecular and Optical Physics)
(Accessed December 1, 2023)