Interaction-Assisted Reversal of Thermopower with Ultracold Atoms

@article{Husler2020InteractionAssistedRO,
  title={Interaction-Assisted Reversal of Thermopower with Ultracold Atoms},
  author={Samuel H{\"a}usler and Philipp Fabritius and Jeffrey Mohan and Martin Lebrat and Laura Corman and Tilman Esslinger},
  journal={arXiv: Quantum Gases},
  year={2020}
}
We study thermoelectric currents of neutral, fermionic atoms flowing through a mesoscopic channel connecting a hot and a cold reservoir across the superfluid transition. The thermoelectric response results from a competition between density-driven diffusion from the cold to the hot reservoir and the channel favoring transport of energetic particles from hot to cold. We control the relative strength of both contributions to the thermoelectric response using an external optical potential in both… 
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