# Unconventional pairing in few-fermion systems tuned by external confinement

@article{Dobrzyniecki2021UnconventionalPI, title={Unconventional pairing in few-fermion systems tuned by external confinement}, author={Jacek Dobrzyniecki and Giuliano Orso and Tomasz Sowi'nski}, journal={Physical Review Research}, year={2021} }

We study the ground-state properties of a two-component one-dimensional system of a few ultracold fermions with attractive interactions. We show that, by ramping up an external potential barrier felt by one of the components, it is possible to induce regions of exotic superfluid phases, characterized by a tunable finite net momentum of the Cooper pair, without changing the overall spin populations. We show that these phases, which are the few-body analogs of the celebrated Fulde-Ferrell-Larkin…

## One Citation

### Unconventional pairing in few-fermion systems at finite temperature

- Physics
- 2022

Attractively interacting two-component mixtures of fermionic particles confined in a onedimensional harmonic trap are investigated. Properties of balanced and imbalanced systems are systematically…

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