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Repulsion-Driven Chiral Superconductivity in Twisted MoTe2

Tianle Wang, UC Berkeley
Trithep Devakul

Event Details:

Monday, September 14, 2026
11:00am - 12:00pm PDT

Location

McCullough Room 335

Recent experiments in twisted MoTe2 have reported superconductivity emerging from an anomalous Hall metal near a FQAH state, motivating the search for topological chiral pairing. Complementing earlier Landau-level studies and weak-coupling continuum theories, we numerically investigated the nature of the superconductor with infinite-cylinder DMRG using a material-specific microscopic model. We identify a superconducting regime in the experimentally relevant filling and displacement field. The state exhibits Luther-Emery phenomenology consistent with a two-dimensional superconductor. The internal pair structure suggests chiral f-wave pairing, while a number-conserving weak-pairing diagnostic supports its topological character. The calculation also qualitatively captures its suppression by a displacement field in experiment, which we attributed to reduced phase stiffness rather than pair breaking. In summary, our calculations provide a realistic microscopic account of repulsion-driven chiral superconductivity in twisted MoTe2.  

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