Superconductivity from doping a fractional Chern insulator · revision history

Revision 2

Accepted · core change · record

Changes against revision 1:

Title
Superconductivity from doping a fractional Chern insulator
Plain · changed
Revision 1: Adding a few extra electrons to a fractional state may produce a superconductor whose carriers are anyons, and the superconductivity seen next to fractional states in twisted MoTe2 could be the first example.
Revision 2: Adding a few extra electrons to a fractional state may produce a superconductor whose carriers are anyons, and the superconductivity seen next to fractional states in twisted $\mathrm{MoTe_2}$ could be the first example.
Precise · changed · core
Revision 1: Theory (Z. D. Shi and T. Senthil, arXiv:2409.20567, 2024) proposed that doping a $\nu = 2/3$ fractional Chern insulator can yield a chiral topological superconductor from anyon pairing. Determine whether the superconductivity observed near FQAH states in twisted MoTe2 (2025) is of this type, using its predicted signatures: a specific chiral central charge, a charge-$2e$ condensate breaking time reversal, and a $T_{\mathrm{c}}$ and superfluid stiffness that grow from zero with doping away from the fractional state. An answer is yes or no with the matching signatures.
Revision 2: Theory (Z. D. Shi and T. Senthil, arXiv:2409.20567, 2024) proposed that doping a $\nu = 2/3$ fractional Chern insulator can yield a chiral topological superconductor from anyon pairing. Determine whether the superconductivity observed near FQAH states in twisted $\mathrm{MoTe_2}$ (2025) is of this type, using its predicted signatures: a specific chiral central charge, a charge-$2e$ condensate breaking time reversal, and a $T_{\mathrm{c}}$ and superfluid stiffness that grow from zero with doping away from the fractional state. An answer is yes or no with the matching signatures.
Settled by
Thermal Hall and edge-mode measurements on the superconductor compared with anyon-superconductor predictions, plus the doping dependence of superfluid stiffness.
Kind
well-posed
Answer type
yes-no
References
(empty)
Literature status
open
Status note
(empty)
Posed since
2024

Decisions