Unconventional pairing in one-dimensional systems of a few mass-imbalanced ultracold fermions

@article{ydba2020UnconventionalPI,
  title={Unconventional pairing in one-dimensional systems of a few mass-imbalanced ultracold fermions},
  author={Patrycja Łydżba and Tomasz Sowi'nski},
  journal={Physical Review A},
  year={2020}
}
We study the ground-state properties of a two-component fermionic mixture effectively confined in a one-dimensional harmonic trap. We consider scenarios when numbers of particles in components are the same but particles have different masses. We examine whether it is possible to detect signatures of an unconventional pairing between opposite-spin fermions in the presence of attractive interactions. For this purpose, we perform the exact diagonalization of the many-body Hamiltonian and study the… 

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