Repulsive polarons and itinerant ferromagnetism in strongly polarized Fermi gases

@article{Massignan2011RepulsivePA,
  title={Repulsive polarons and itinerant ferromagnetism in strongly polarized Fermi gases},
  author={Pietro Massignan and Georg Morten Bruun},
  journal={The European Physical Journal D},
  year={2011},
  volume={65},
  pages={83-89}
}
Abstract We analyze the properties of a single impurity immersed in a Fermi sea. At positive energy and scattering lengths, we show that the system possesses a well-defined but metastable excitation, the repulsive polaron, and we calculate its energy, quasiparticle residue and effective mass. From a thermodynamic argument we obtain the number of particles in the dressing cloud, illustrating the repulsive character of the polaron. Identifying the important 2- and 3-body decay channels, we… CONTINUE READING

Citations

Publications citing this paper.
SHOWING 1-10 OF 18 CITATIONS

Polarons, dressed molecules and itinerant ferromagnetism in ultracold Fermi gases.

  • Reports on progress in physics. Physical Society
  • 2014
VIEW 5 EXCERPTS
CITES METHODS & BACKGROUND

Universal many-body response of heavy impurities coupled to a Fermi sea: a review of recent progress.

  • Reports on progress in physics. Physical Society
  • 2018
VIEW 4 EXCERPTS
CITES BACKGROUND
HIGHLY INFLUENCED

References

Publications referenced by this paper.
SHOWING 1-3 OF 3 REFERENCES

Rev

S. Giorgini, L. P. Pitaevskii, S. Stringari
  • Mod. Phys. 80, (2008)
  • 1215
VIEW 6 EXCERPTS
HIGHLY INFLUENTIAL

Phil

E. Stoner
  • Mag. 15, (1933)
  • 1018
VIEW 1 EXCERPT