Precision Measurements of Collective Oscillations in the BEC-BCS Crossover
A. Altmeyer, S. Riedl, C. Kohstall, M. Wright, R. Geursen, M. Bartenstein, C. Chin, J. Hecker Denschlag, R. Grimm
Abstract
We report on precision measurements of the frequency of the radial compression mode in a strongly interacting, optically trapped Fermi gas of Li-6 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 BEC regime.
Create a lesson
Related papers
Non-Hermitian Skin Effect from Radiative Coupling in a Reciprocal Chiral Medium
Kin Hung Fung, Changhao Meng, Yixin Xiao et al.
Landau Theory for Commensurate Charge-Density Waves Coupled to Uniform Lattice Deformation
Keiji Nakatsugawa, Toshiyuki Fujii, Satoshi Tanda
PCB-Integrated CoPt Micromagnets for Magnetophoresis
Melissa Mitchell, Henrique Mira, Simon Bending et al.
Raman magnon spectroscopy of local interactions and ground state selection in Sr2IrO4
Xiang Li, Scott E. Cooper, Ahmed E. Fahmy et al.
Nonreciprocal Control of the Goos--Hänchen Shift via the Barnett Effect in Cavity Magnomechanics
Shah Fahad, Gao Xianlong
Theory of the Spinon-Mediated Witness Spin Glass in Herbertsmithite
Mitikorn Wood-Thanan, Felix Flicker