Laser-Catalyzed Production of Ultracold Molecules: The ~6Li + ~6Li~7Li hω→ ~6Li - ~6Li + ~7Li Reaction

摘要

We show that by using laser catalysis, we can employ translationally cold (T_r ≈ 1.75 K) collisions to produce ultracold (0.01 mK < T_p < 1 mK) (homonuclear) molecules. We illustrate this approach by studying the laser catalysis of the ~6Li + ~6Li~7Li hω→ (~6Li~6Li~7Li)~*(1~4A'') hω→ ~6Li~6Li + ~7Li reaction in the collinear approximation. Ultracold ~6Li~6Li product molecules are shown to be produced at an extraordinary yield of up to 99.97%, using moderate laser intensities of I = 100 kW/cm~2 - 10 MW/cm~2.