Work

Precision Measurements of Collective Oscillations in the BEC-BCS Crossover

Year: 2007

Type: article

Abstract: We report on precision measurements of the frequency of the radial compression mode in a strongly interacting, optically trapped Fermi gas of (6)Li atoms. Our results allow for a test of theoretical predictions for the equation of state in the BEC-BCS crossover. We confirm recent quantum Monte Carlo results and rule out simple mean-field BCS theory. Our results show the long-sought beyond-mean-field effects in the strongly interacting Bose-Einstein condensation (BEC) regime.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.98.040401

Authors: A. Altmeyer, S. Riedl, C. Kohstall, M. J. Wright, R. Geursen, M. Bartenstein, C. Chin, J. Hecker Denschlag, R. Grimm

Institutions: Universität Innsbruck, Institute for Quantum Optics and Quantum Information Innsbruck, University of Chicago

Language: English

Topic: Cold Atom Physics and Bose-Einstein Condensates

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, Österreichischen Akademie der Wissenschaften, Austrian Science Fund, Materials Research Science and Engineering Center, Harvard University, Division of Materials Research

Awards: G4738448618, Materials Research Science and Engineering Center

OpenAlex ID: W1973039074

FWCI: 14.82

Cites: 36

Cited by: 250

Related to: 10