Ultrafast many-body interferometry of impurities coupled to a Fermi sea
Abstract
The nonequilibrium dynamics of many-body quantum systems are tricky to study experimentally or theoretically. As an experimental setting, dilute atomic gases offer an advantage over electrons in metals. In this environment, the heavier atoms make collective processes that involve the entire Fermi sea occur at the sluggish time scale of microseconds. Cetina et al. studied these dynamics by using a small cloud of 40 K atoms that was positioned at the center of a far larger 6 Li cloud. Controlling the interactions between K and Li atoms enabled a detailed look into the formation of quasiparticles associated with K “impurity” atoms.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Oct 07, 2016
- Source ID
- 10.1126/science.aaf5134
Entities
People
- Eugene A. Demler
- Isabella Fritsche
- Jesper Levinsen
- Jook T. M. Walraven
- Marko Cetina
- Meera Parish
- Michael Jag
- Michael Knap
- Rianne S. Lous
- Richard Schmidt
- Rudolf Grimm
Organizations
- Air Force Office of Scientific Research
- Army Research Office
- Austrian Academy of Sciences
- Austrian Science Fund
- ETH Zurich
- Harvard University
- Harvard–Smithsonian Center for Astrophysics
- Monash University
- National Science Foundation
- Seventh Framework Programme
- Simons Foundation
- Technical University of Munich
- University of Amsterdam
- University of Innsbruck