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• Yang Zhang

Room: 257

Research Meeting - Steve Johnston

• Steve Johnston (University of Tennessee)

Room: 330

Fractional Topological Insulator and Topological Superconductor in TMD Moire Bilayers Room: 310 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).

Research Meeting

• Bo Xiao (ORNL)

Room: 310

Research Meeting

• Yang Zhang

Room: 257

Research Meeting

• Elbio Dagotto

https://tennessee.zoom.us/j/88239417231

Research Meeting

• Yixin Zhang

Room: 262

Research meeting

• Shangshun Zhang

Room: 3rd floor

Research Meeting

• Ruixing Zhang (Department of Physics and Astronomy, University of Tennessee Knoxville)

Room: 323

Research Meeting

• Songyang Pu

Room: 105

Research Meeting

• Nianlong Zou

Room: 262