Twisted WSe2 hosts superconductivity, metal-insulator phase transitions, and field-controllable Fermi-liquid to non-Fermi-liquid transport properties. In this work, we use dynamical mean-field theory to provide a coherent understanding of the electronic correlations shaping the twisted WSe2 phase diagram. We find a correlated metal competing with three distinct site-polarized correlated insulators; the competition is controlled by interlayer potential difference and interaction strength. The insulators are characterized by a strong differentiation between orbitals with respect to carrier concentration and effective correlation strength. Upon doping, a strong particle-hole asymmetry emerges, resulting from a Zaanen-Sawatzky-Allen-type charge-transfer mechanism. The associated charge-transfer physics and proximity to a van Hove singularity in the correlated metal sandwiched between two site-polarized insulators naturally explains the interlayer potential-driven metal-to-insulator transition, particle-hole asymmetry in transport, and the coherence-incoherence crossover in 3.65∘ twisted WSe2.
@article{arxiv.2506.22325,
title = {Site-polarized Mott phases competing with a correlated metal in twisted WSe$_2$},
author = {Siheon Ryee and Lennart Klebl and Gautam Rai and Ammon Fischer and Valentin Crépel and Lede Xian and Angel Rubio and Dante M. Kennes and Roser Valentí and Andrew J. Millis and Antoine Georges and Tim O. Wehling},
journal= {arXiv preprint arXiv:2506.22325},
year = {2026}
}