Avalanches in a Bose-Einstein condensate

Abstract

Collisional avalanches are identified to be responsible for an 8-fold increase of the initial loss rate of a large 87-Rb condensate. We show that the collisional opacity of an ultra-cold gas exhibits a critical value. When exceeded, losses due to inelastic collisions are substantially enhanced. Under these circumstances, reaching the hydrodynamic regime in conventional BEC experiments is highly questionable.

4 pages, 2 figures, 1 table

Cited by in corpus (21)

• Self-bound quantum droplets in atomic mixtures
• Observation of an Efimov spectrum in an atomic system
• Universality in Three- and Four-Body Bound States of Ultracold Atoms
• Dynamics of single neutral impurity atoms immersed in an ultracold gas
• Large atom number Bose-Einstein Condensate machines
• Direct laser cooling to Bose-Einstein condensation in a dipole trap
• Probing the Interface of a Phase-Separated State in a Repulsive Bose-Fermi Mixture
• Large atom number Bose-Einstein condensate of sodium
• Optimized production of large Bose Einstein Condensates
• Avalanches of Bose-Einstein Condensates in Leaking Optical Lattices
• Probing strongly interacting atomic gases with energetic atoms
• Looking for "avalanche-mechanism" loss at an atom-molecule Efimov resonance
• Collisional relaxation of Feshbach molecules and three-body recombination in 87Rb Bose-Einstein condensates
• Ionization rates in a Bose-Einstein condensate of metastable Helium
• Universal Dimer in a Collisionally Opaque Medium: Experimental Observables and Efimov Resonances
• Strange Quark stars: Observations & Speculations
• Reaching the hydrodynamic regime in a Bose-Einstein condensate by suppression of avalanche
• Observation of Anomalous Decay of a Polarized Three-Component Fermi Gas
• Effect of atomic transfer on the decay of a Bose-Einstein condensate
• Indirect decoherence in optical lattices and cold gases
• Three-body Physics in the Impurity Limit of 39K Bose-Einstein Condensates