Bose polarons near quantum criticality

Author:

Yan Zoe Z.1ORCID,Ni Yiqi1ORCID,Robens Carsten1ORCID,Zwierlein Martin W.1ORCID

Affiliation:

1. MIT–Harvard Center for Ultracold Atoms, Research Laboratory of Electronics, and Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.

Abstract

Immersing the impurities In solids, moving electrons can polarize their environment, the ionic crystal lattice, creating quasi particles known as polarons. An analogous phenomenon can be studied in quantum gases by placing impurity atoms into a much denser gas of atoms of a different species. Yan et al. studied the behavior of Bose polarons, quasiparticles consisting of impurity atoms of potassium-40 immersed in a Bose gas of sodium-23 atoms. In the vicinity of a quantum critical point, the lifetime of the polarons followed the so-called Planckian scale. Science , this issue p. 190

Funder

National Science Foundation

David and Lucile Packard Foundation

Air Force Office of Scientific Research

Army Research Office

Gordon and Betty Moore Foundation

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference87 articles.

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5. Electrons in lattice fields

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