Composite fermions in ideal Chern bands

The study extends composite-fermion theory to fractional Chern insulators (FCIs) by creating wave functions for Jain states and their excitations within Aharonov–Casher bands. It shows that charged excitations form dispersive Bloch bands even when the underlying electronic band is flat, proving anyon dispersion comes from the single composite fermion's band structure, not residual interactions.

Open the full episode

More from Quantum Radio