Bose polarons near quantum criticality
Abstract
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 10, 2020
- Source ID
- 10.1126/science.aax5850
Entities
People
- Carsten Robens
- Martin W. Zwierlein
- Yiqi Ni
- Zoe Z Yan
Organizations
- Air Force Office of Scientific Research
- Army Research Office
- David and Lucile Packard Foundation
- Gordon and Betty Moore Foundation
- Massachusetts Institute of Technology
- National Science Foundation