2008/01/31 by Yong-il Shin · 2 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Atomic physics #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Equation of state #Fermi Gamma-ray Space Telescope #Fermi gas #Ideal gas #Physics #Physics of Superconductivity and Magnetism #Population #Quantum mechanics #Unitarity #cond-mat.stat-mech
paper · pdf · doi:10.1103/physreva.77.041603
4 pages, 3 figures / typo correction / figure replacement
arxiv created 2008/03/28 · openalex publication_date 2008/04/10 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report on the measurement of the equation of state of a two-component Fermi gas of 6Li atoms with resonant interactions. By analyzing the in situ density distributions of a population-imbalanced Fermi mixture reported in a recent experiment [Y. Shin et al., Nature 451, 689 (2008)], we determine the energy density of a resonantly interacting Fermi gas as a function of the densities of the two components. We present a method to determine the equation of state directly from the shape of the trapped cloud, where the fully polarized, noninteracting ideal Fermi gas in the outer region provides the absolute calibration of particle density. From the density profiles obtained at the lowest temperature, we estimate the zero-temperature equation of state.