Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2008-03-28
Phys. Rev. Lett. 101, 023201 (2008)
Physics
Condensed Matter
Other Condensed Matter
4 pages, 4 figures
Scientific paper
10.1103/PhysRevLett.101.023201
We study inelastic collisions in a pure, trapped sample of Feshbach molecules made of bosonic cesium atoms in the quantum halo regime. We measure the relaxation rate coefficient for decay to lower-lying molecular states and study the dependence on scattering length and temperature. We identify a pronounced loss minimum with varying scattering length along with a further suppression of loss with decreasing temperature. Our observations provide insight into the physics of a few-body quantum system that consists of four identical bosons at large values of the two-body scattering length.
Berninger Martin
Ferlaino Francesca
Grimm Rudolf
Knoop Steven
Mark Michael
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