2011/03/15 by Naaman Tammuz, Robert P. Smith, Robert L. D. Campbell +5 · 1 citation
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #cond-mat.quant-gas #cond-mat.stat-mech #physics.atom-ph #quant-ph
paper · pdf · doi:10.1103/physrevlett.106.230401
published as Phys. Rev. Lett. 106, 230401 (2011) · 6 pages, 5 figures
arxiv created 2011/03/15 · openalex publication_date 2011/06/06 · arxiv updated 2011/06/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We scrutinize the concept of saturation of the thermal component in a partially condensed trapped Bose gas. Using a 39K gas with tunable interactions, we demonstrate strong deviation from Einstein's textbook concept of a saturated vapor. However, the saturation picture can be recovered by extrapolation to the strictly noninteracting limit. We provide evidence for the universality of our observations through additional measurements with a different atomic species, 87Rb.