{"id":490,"date":"2018-07-09T19:17:41","date_gmt":"2018-07-09T17:17:41","guid":{"rendered":"http:\/\/ultracold.at\/grimm\/?page_id=490"},"modified":"2018-07-10T14:06:04","modified_gmt":"2018-07-10T12:06:04","slug":"efimov","status":"publish","type":"page","link":"https:\/\/ultracold.at\/grimm\/efimov\/","title":{"rendered":"Efimov states"},"content":{"rendered":"
\"\"
Illustration of Efimov’s scenario<\/figcaption><\/figure>\n

In summer 2oo5, we observed the first experimental signature of an Efimov quantum state in an ultracold gas of cesium atoms. This work was the starting point for a new branch in cold-atom physics<\/a>.<\/p>\n

Here are the major milestones of our work on Efimov states:<\/strong><\/p>\n

2005\/06:<\/strong> Evidence for an Efimov quantum state<\/em>
\nKraemer et al.<\/em>, Nature 440<\/strong>, 315 (2016)<\/a>
\nSome background information from our old webpage<\/a><\/p>\n

2009:<\/strong> Observation of an atom-dimer Efimov resonance<\/em>
\nKnoop et al.<\/em>, Nat. Phys. 5<\/strong>, 227 (2009)<\/a><\/p>\n

2009:<\/strong> Evidence for four-body bound states tied to Efimov trimers<\/em>
\nFerlaino et al.<\/em>, Phys. Rev. Lett. 102<\/strong>, 140401 (2009)<\/a>
\nSee Viewpoint in Physics<\/a> by B. Esry<\/p>\n

2011:<\/strong> Three-body parameter universality<\/em>
\nBerninger et al.<\/em>, Phys. Rev. Lett. 107<\/strong>, 120401 (2011)<\/a><\/p>\n

2014:<\/strong> Verification of the Efimov period<\/em>
\nHuang et al.<\/em>, Phys. Rev. Lett. 112<\/strong>, 190401 (2014)<\/a>
\nSee Viewpoint in Physics<\/a> by G. Modugno
\nFor more information see our contribution to 2Physics<\/a><\/p>\n

For a very basic introduction into Efimov physics, watch the following video (produced to promote a 2017 review article<\/a> by P. Naidon and S. Endo):<\/p>\n