Raman-induced oscillation between an atomic and a molecular quantum gas

Details Raman-induced oscillation between an atomic and a molecular quantum gas Raman-induced oscillation between an atomic and a molecular quantum gas

2005-08-08

arxiv.org/abs/cond-mat/0508201v1

Physics

Condensed Matter

Other Condensed Matter

14 pages, 4 figures

Scientific paper

It has recently been demonstrated that quantum degenerate gases of very weakly bound molecules can be produced by atomic gases with Feshbach resonances. More strongly bound molecules can be produced with Raman photoassociation of a quantum gas, although this process has not yet been shown to produce a quantum degenerate molecular gas. In principle, Feshbach resonance and Raman photoassociation can be quantum-mechanically reversible, and lead to collective coherent phenomena such as Rabi cycling between an atomic and a molecular gas. However, such atom-molecular coherence has only partly been realized experimentally. Effects that may limit coherence include thermalizing elastic collisions, inelastic collisions, spontaneous Raman scattering, and pairing field formation. Here, we demonstrate a method that circumvents these limitations, based on Raman photoassociation of atoms in an optical lattice and driven into a Mott insulator state. We find that the Raman photoassociation transition is resolved into discrete lines corresponding to the quantized lattice site occupancies, and demonstrate that this provides a new method to accurately determine the distribution of site occupancies and the atom-molecule scattering length. Furthermore, we observe a Raman-induced oscillation of the central core of the gas, containing about 30% of the atoms, between an atomic and a molecular gas.

Affiliated with

Also associated with

No associations

Rating

Raman-induced oscillation between an atomic and a molecular quantum gas does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Raman-induced oscillation between an atomic and a molecular quantum gas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Raman-induced oscillation between an atomic and a molecular quantum gas will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-361102