Ultrafast many-body interferometry of impurities coupled to a Fermi sea-Reference-Cited by-同舟云学术

Ultrafast many-body interferometry of impurities coupled to a Fermi sea

Published:2016-10-07 Issue:6308 Volume:354 Page:96-99
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Cetina Marko¹²,Jag Michael¹²,Lous Rianne S.¹²,Fritsche Isabella¹²,Walraven Jook T. M.¹³,Grimm Rudolf¹²,Levinsen Jesper⁴,Parish Meera M.⁴,Schmidt Richard⁵⁶,Knap Michael⁷,Demler Eugene⁶

Affiliation:

1. Institut für Quantenoptik und Quanteninformation, Österreichische Akademie der Wissenschaften, 6020 Innsbruck, Austria.

2. Institut für Experimentalphysik, Universität Innsbruck, 6020 Innsbruck, Austria.

3. Van der Waals–Zeeman Institute, Institute of Physics, University of Amsterdam, 1098 XH Amsterdam, Netherlands.

4. School of Physics and Astronomy, Monash University, Victoria 3800, Australia.

5. Institute for Theoretical Atomic, Molecular and Optical Physics (ITAMP), Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138, USA.

6. Department of Physics, Harvard University, Cambridge, MA 02138, USA.

7. Department of Physics, Walter Schottky Institute and Institute for Advanced Study, Technical University of Munich, 85748 Garching, Germany.

Abstract

Sluggish turmoil in the Fermi sea 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. Science , this issue p. 96

Funder

German Excellence Initiative

European Union FP7

Harvard-MIT Center for Ultracold Atoms

NSF

Air Force Office of Scientific Research Quantum Simulation Multidisciplinary University Research Initiative (MURI)

Army Research Office MURI on Atomtronics

Walter Haefner Foundation

ETH Foundation

Simons Foundation

Austrian Science Fund

Publisher