Fermionic spinon and holon statistics in the pyrochlore quantum spin liquid

TL;DR

This paper shows that in a pyrochlore quantum spin liquid, both spinon and holon quasiparticles exhibit fermionic statistics, revealing new insights into their quantum behavior.

Contribution

It demonstrates that spinons and holons in the pyrochlore quantum spin liquid are fermions, providing a novel understanding of quasiparticle statistics in this system.

Findings

Spinons are fermionic in the pyrochlore quantum spin liquid.

Doped holons also behave as fermions.

The origin of fermionic holons is explained theoretically.

Abstract

The one-band Hubbard model on the pyrochlore lattice contains an extended quantum spin-liquid phase formed from the manifold of singlet dimer coverings. We demonstrate that the massive and deconfined spinon excitations of this system have fermionic statistics. Holonic quasiparticles introduced by doping are also fermions and we explain the origin of this counterintuitive result.