# Enhancing quantum order with fermions by increasing species degeneracy

## TL;DR

This paper proposes increasing species degeneracy in fermionic cold atom systems to raise the temperature at which quantum ordered phases, like antiferromagnetism, can form, potentially enabling experimental realization.

## Contribution

It introduces a theoretical approach to enhance quantum order by increasing atomic species degeneracy, offering a new pathway to observe ordered phases in cold atom experiments.

## Key findings

- Theoretical framework for degeneracy-enhanced ordering temperature
- Potential experimental systems identified for implementation
- Addressing the challenge of low-temperature cooling in fermionic systems

## Abstract

One of the challenges for fermionic cold atom experiments in optical lattices is to cool the systems to low enough temperature that they can form quantum degenerate ordered phases. In particular, there has been significant work in trying to find the antiferromagnetic phase transition of the Hubbard model in three dimensions, without success. Here, we attack this problem from a different angle by enhancing the ordering temperature via an increase in the degeneracy of the atomic species trapped in the optical lattice. In addition to developing the general theory, we also discuss some potential systems where one might be able to achieve these results experimentally.