---
res:
  bibo_abstract:
  - We present a numerical analysis of spin-1/2 fermions in a one-dimensional harmonic
    potential in the presence of a magnetic point-like impurity at the center of the
    trap. The model represents a few-body analogue of a magnetic impurity in the vicinity
    of an s-wave superconductor. Already for a few particles we find a ground-state
    level crossing between sectors with different fermion parities. We interpret this
    crossing as a few-body precursor of a quantum phase transition, which occurs when
    the impurity "breaks" a Cooper pair. This picture is further corroborated by analyzing
    density-density correlations in momentum space. Finally, we discuss how the system
    may be realized with existing cold-atoms platforms.@eng
  bibo_authorlist:
  - foaf_Person:
      foaf_givenName: Lukas
      foaf_name: Rammelmüller, Lukas
      foaf_surname: Rammelmüller
  - foaf_Person:
      foaf_givenName: David
      foaf_name: Huber, David
      foaf_surname: Huber
  - foaf_Person:
      foaf_givenName: Matija
      foaf_name: Čufar, Matija
      foaf_surname: Čufar
  - foaf_Person:
      foaf_givenName: Joachim
      foaf_name: Brand, Joachim
      foaf_surname: Brand
  - foaf_Person:
      foaf_givenName: Hans-Werner
      foaf_name: Hammer, Hans-Werner
      foaf_surname: Hammer
  - foaf_Person:
      foaf_givenName: Artem
      foaf_name: Volosniev, Artem
      foaf_surname: Volosniev
      foaf_workInfoHomepage: http://www.librecat.org/personId=37D278BC-F248-11E8-B48F-1D18A9856A87
    orcid: 0000-0003-0393-5525
  bibo_doi: 10.21468/scipostphys.14.1.006
  bibo_issue: '1'
  bibo_volume: 14
  dct_date: 2023^xs_gYear
  dct_identifier:
  - UT:001000325800008
  dct_isPartOf:
  - http://id.crossref.org/issn/2542-4653
  dct_language: eng
  dct_publisher: SciPost Foundation@
  dct_subject:
  - General Physics and Astronomy
  dct_title: Magnetic impurity in a one-dimensional few-fermion system@
...