The Equation of State of a Low-Temperature Fermi Gas with Tunable Interactions - Archive ouverte HAL Access content directly
Journal Articles Science Year : 2010

The Equation of State of a Low-Temperature Fermi Gas with Tunable Interactions

(1) , (1) , (1) , (1)
1
Nir Navon
  • Function : Correspondent author
  • PersonId : 861950

Connectez-vous pour contacter l'auteur
Sylvain Nascimbène
  • Function : Author
  • PersonId : 864347
Frédéric Chevy
  • Function : Author
  • PersonId : 828631
Christophe Salomon
  • Function : Author
  • PersonId : 828501

Abstract

Interacting fermions are ubiquitous in nature and understanding their thermodynamics is an important problem. We measure the equation of state of a two-component ultracold Fermi gas for a wide range of interaction strengths at low temperature. A detailed comparison with theories including Monte-Carlo calculations and the Lee-Huang-Yang corrections for low-density bosonic and fermionic superfluids is presented. The low-temperature phase diagram of the spin imbalanced gas reveals Fermi liquid behavior of the partially polarized normal phase for all but the weakest interactions. Our results provide a benchmark for many-body theories and are relevant to other fermionic systems such as the crust of neutron stars.
Fichier principal
Vignette du fichier
navon_crossover.pdf (619.4 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-00470161 , version 1 (04-04-2010)

Identifiers

Cite

Nir Navon, Sylvain Nascimbène, Frédéric Chevy, Christophe Salomon. The Equation of State of a Low-Temperature Fermi Gas with Tunable Interactions. Science, 2010, 328 (5979), pp.729. ⟨10.1126/science.1187582⟩. ⟨hal-00470161⟩
106 View
621 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More