Related Experiment Video
Updated: Jul 14, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Color superfluidity and "baryon" formation in ultracold fermions
Akos Rapp1, Gergely Zaránd, Carsten Honerkamp
1Theoretical Physics Department, Institute of Physics, Budapest University of Technology and Economy, Budapest, H-1521, Hungary.
Abstract:
We study fermionic atoms of three different internal quantum states (colors) in an optical lattice, which are interacting through attractive on site interactions, U<0. Using a variational calculation for equal color densities and small couplings, |U|<|UC|, a color superfluid state emerges with a tendency to domain formation. For |U|>|UC|, triplets of atoms with different colors form singlet fermions (trions). These phases are the analogies of the color superconducting and baryonic phases in QCD. In ultracold fermions, this transition is found to be of second order. Our results demonstrate that quantum simulations with ultracold gases may shed light on outstanding problems in quantum field theory.
Related Concept Videos
Fermi Level Dynamics
Electron affinity in semiconductors refers to the energy gap between the minimum of its conduction band and the vacuum level and it is a critical parameter in determining how easily a semiconductor can accept additional electrons.
The work...
Phase Transitions: Melting and Freezing
Superconductor
Fluid Mosaic Model
Fluid Mosaic Model
Types Of Superconductors

