Fractional Chern insulators beyond Landau levels
This text mentions work from 2024 on. Those parts were partly written without a live literature search and have not been checked by an editor yet.
Fractional Chern insulators are states in a crystal where electrons act together as particles carrying a fraction of the electron charge, as in the fractional quantum Hall effect, but produced by band topology instead of a strong magnetic field.
Why it matters
They could bring anyons to zero field and higher temperatures, and they test which electron bands support fractional charge.
Review
Z. Liu, E. J. Bergholtz, Recent developments in fractional Chern insulators, arXiv:2208.08449, 2022. https://arxiv.org/abs/2208.08449 reference checked
Timestamp record
- Signed record
- 99dc6b2de04e…
- Public log
- Entry 136, in checkpoint 2,123
- In the log by
- Block 969,698, 2026-10-03
This text was in the PubPhys log by that date. The date says nothing about when the problem was first posed.