Crystallization of trions in SU(3) cold atom gases trapped in optical lattices

TL;DR

This paper demonstrates the formation of a stable, incompressible trionic crystal phase in SU(3) cold atom gases within optical lattices, resilient to symmetry breaking and observable through dynamical freezing after trap removal.

Contribution

It reveals the robustness and generic nature of the trionic crystal phase in SU(3) fermionic gases, including its incompressibility and dynamical properties.

Findings

Trionic crystal phase is incompressible and robust against symmetry breaking.

Formation of the crystal causes freezing of dynamics after trap removal.

The phase is generic due to its incompressible nature.

Abstract

Cold Fermionic atoms with three different hyperfine states confined in optical lattices show pronounced Atomic Density Waves (ADWs). These ADWs are pinned due to the confining potential that traps the atoms in the optical lattice and can be considered a crystal of strongly bound trions. We show that the crystalline phase is incompressible and robust against SU(3) symmetry breaking interaction. We also show that it is generic in the presence of the trap due to its incompressible characteristics. A simulation of the time evolution of the fermionic gas after the trapping potential is switch off shows that the formation of the trionic crystal is marked by a freezing of the dynamics in the lattice.