Proposed Near-Unit-Efficient Raman Creation of a Stable Molecular Bose-Einstein Condensate

Eric L. Bolda, Daniel F. Walls

Kemal Önen

Khadzhi Peter, Зинган Анна Петровна, E.V. Jucov +2 more

Krishna Rai Dastidar, Deb Shankar Ray

Matt Mackie

Photoassociation and the Feshbach resonance are, in principle, feasible means for creating a molecular Bose-Einstein condensate from an already-quantum-degenerate gas of atoms; however, mean-field shifts and irreversible decay place practical constraints on the efficient delivery of stable molecules using either mechanism alone. We therefore propose Feshbach-stimulated Raman photoproduction, i.e., a combination of magnetic and optical methods, as a means to collectively convert degenerate atoms into a stable molecular condensate with near-unit efficiency.

Matt Mackie, Anssi Collin, Kalle‐Antti Suominen +1 more

Although photoassociation and the Feshbach resonance are feasible means in principle for creating a molecular Bose–Einstein condensate (MBEC) from an already quantum-degenerate gas of atoms, collision-induced mean-field shifts and irreversible decay place practical constraints on the efficient Raman delivery of stable molecules. Focusing on stimulated Raman adiabatic passage, we propose that the efficiency of both mechanisms for producing a stable MBEC can be improved by treating the density of the initial atom condensate as an optimization parameter.