Observation of Fermi Polarons in a Tunable Fermi Liquid of Ultracold Atoms

We have observed Fermi polarons, dressed spin-down impurities in a spin-up Fermi sea of ultracold atoms. The polaron manifests itself as a narrow peak in the impurities’ rf spectrum that emerges from a broad incoherent background. We determine the polaron energy and the quasiparticle residue for var...

Full description

Bibliographic Details
Main Authors: Sommer, Ariel Tjodolv, Wu, Cheng-Hsun, Zwierlein, Martin Wolfram, Schirotzek, Andre
Other Authors: Massachusetts Institute of Technology. Department of Physics
Format: Article
Language:en_US
Published: American Physical Society 2010
Online Access:http://hdl.handle.net/1721.1/51068
https://orcid.org/0000-0001-8120-8548