723 citations · 3k across the 43 of their papers we have counts for
7 papers · 1 filter
Electronic spectra with paramagnon fractionalization in the single band Hubbard model
Eric Mascot, Alexander Nikolaenko, Maria Tikhanovskaya +3
We examine the spectral properties of a recently proposed theory of the intermediate temperature pseudogap metal phase of the cuprates. We show that this theory can be obtained fro…
Doping a moiré Mott Insulator: A t-J model study of twisted cuprates
Xue-Yang Song, Ya-Hui Zhang, Ashvin Vishwanath
We theoretically investigate twisted structures where each layer is composed of a strongly correlated material. In particular, we study a twisted t-J model of cuprate multilayers w…
Symmetry-broken Chern insulators in twisted double bilayer graphene
Minhao He, Jiaqi Cai, Ya-Hui Zhang +7
Twisted double bilayer graphene (tDBG) has emerged as an especially rich platform for studying strongly correlated and topological states of matter. The material features moiré ban…
SU(4) chiral spin liquid, exciton supersolid and electric detection in moiré bilayers
Ya-Hui Zhang, D. N. Sheng, Ashvin Vishwanath
We propose moiré bilayer as a platform where exotic quantum phases can be stabilized and electrically detected. Moiré bilayer consists of two separate moiré superlattice layers cou…
Small to large Fermi surface transition in a single band model, using randomly coupled ancillas
Alexander Nikolaenko, Maria Tikhanovskaya, Subir Sachdev +1
We describe a solvable model of a quantum transition in a single band model involving a change in the size of the electron Fermi surface without any symmetry breaking. In a model w…
Spin-orbit driven ferromagnetism at half moiré filling in magic-angle twisted bilayer graphene
Jiang-Xiazi Lin, Ya-Hui Zhang, Erin Morissette +7
Strong electron correlation and spin-orbit coupling (SOC) provide two non-trivial threads to condensed matter physics. When these two strands of physics come together, a plethora o…
Competing correlated states and abundant orbital magnetism in twisted monolayer-bilayer graphene
Minhao He, Ya-Hui Zhang, Yuhao Li +5
Flat band moiré superlattices have recently emerged as unique platforms for investigating the interplay between strong electronic correlations, nontrivial band topology, and multip…