Molecules in a Bose-Einstein Condensate
Tóm tắt
State-selected rubidium-87 molecules were created at rest in a dilute Bose-Einstein condensate of rubidium-87 atoms with coherent free-bound stimulated Raman transitions. The transition rate exhibited a resonance line shape with an extremely narrow width as small as 1.5 kilohertz. The precise shape and position of the resonance are sensitive to the mean-field interactions between the molecules and the atomic condensate. As a result, we were able to measure the molecule-condensate interactions. This method allows molecular binding energies to be determined with unprecedented accuracy and is of interest as a mechanism for the generation of a molecular Bose-Einstein condensate.
Từ khóa
Tài liệu tham khảo
M. Inguscio S. Stringari C. E. Wieman Eds. Bose-Einstein Condensation in Atomic Gases Proceedings of the 1998 Enrico Fermi Summer School Course CXL (IOS Press Amsterdam 1999).
D. J. Heinzen R. H. Wynar P. D. Kheruntsyan P. D. Drummond unpublished results.
We gratefully acknowledge support by NSF the R. A. Welch Foundation and the NASA Microgravity Research Division.