<Speaker Bio>
<Speaker Webpage>
https://www.csun.edu/~ds61319/
Travel to IAMM.
Bilayer transition metal dichalcogenide (TMD) bilayers have offered
unprecedented opportunities for experimental discoveries of novel
topological states without a magnetic field. In my talk, I will first
give a brief overview of the field of fractional Chern insulators
(FCI) and present numerical evidence of the emergence of a
non-Abelian FCI for twisted MoTe2 system at the fractional hole
filling of 3/2. I will show you signatures of a non-Abelian state
via exact diagonalization calculations, including a stable six-fold
ground-state degeneracy and fractionally quantized Chern number that
are consistent with an even-denominator FCI. In the second part of my
talk, I will focus on experimental platforms of hetero-TMD bilayers,
and present numerical evidence for the emergence of chiral spin liquid
and topological d+id superconductivity. Our findings highlight the
richness of the TMD Moire platforms for discovering correlated
topological states of matter.
References:
[1] Robust non-Abelian even-denominator fractional Chern insulator in
twisted bilayer MoTe2, Nature Communications 16, 2115 (2025).
[2] Quantum Phase Diagram and Spontaneously Emergent Topological
Chiral Superconductivity in Doped Triangular-Lattice Mott Insulators,
Phys. Rev. Lett. 130, 136003 (2023).
Adrian Del Maestro
https://tennessee.zoom.us/j/88239417231