Dynamics of single neutral impurity atoms immersed in an ultracold gas

2012/04/30 by Nicolas Spethmann, Farina Kindermann, Shincy John +3 · 2 citations
Physics and Astronomy · #cond-mat.quant-gas

paper · pdf · doi:10.1103/physrevlett.109.235301

arxiv created 2012/10/17 · arxiv updated 2015/06/04

Abstract

We report on controlled doping of an ultracold Rb gas with single neutral Cs impurity atoms. Elastic two-body collisions lead to a rapid thermalization of the impurity inside the Rb gas, representing the first realization of an ultracold gas doped with a precisely known number of impurity atoms interacting via s-wave collisions. Inelastic interactions are restricted to a single three-body recombination channel in a highly controlled and pure setting, which allows to determine the Rb-Rb-Cs three-body loss rate with unprecedented precision. Our results pave the way for a coherently interacting hybrid system of individually controllable impurities in a quantum many-body system.

Cited by

• Impurity localization, and collision properties of symbiotic dark-bright solitons in superfluid-impurity system
• Rabi Oscillations of Strongly Driven Bose Polarons

Related

• Inserting single Cs atoms into an ultracold Rb gas
• Effects of collisions against thermal impurities in the dynamics of a trapped fermion gas
• Three-Body Recombination at Large Scattering Lengths in an Ultracold Atomic Gas
• Correlated decoherence and thermometry with mobile impurities in a 1D Fermi gas
• Dynamics, dephasing and clustering of impurity atoms in Bose–Einstein condensates