4 citations · 10 across the 9 of their papers we have counts for
11 papers
Fractional Chern insulators and composite Fermi liquids vs. charge order in twisted MoTe
Enrique Aguilar-Méndez, Glenn Wagner
The bandstructure of twisted MoTe around 3.7 consists of spin-valley locked Chern bands with a bandwidth that is smaller than the interaction scale. As such, the strong…
Tulva: Practical Asynchronous Threshold FHE
Valerio Cini, Antonio Guimarães, Russell W. F. Lai +2
We present Tulva, a practical threshold FHE scheme which equips a base FHE scheme with an asynchronous threshold decryption mechanism in a modular way. Our scheme simultaneously (1…
Three-dimensional Foliated Fractional Quantum Hall Phases
Sahana Das, Navketan Batra, Andrea Kouta Dagnino +4
Foliated topological orders in three dimensions are layered systems in which anyons are free to move within a layer but cannot hop between them. A simple model with such a phase is…
Fractional topological insulators at odd-integer filling: Phase diagram of two-valley quantum Hall model
Sahana Das, Glenn Wagner, Titus Neupert
The fractional quantum Hall effect has recently been shown to exist in heterostructures of van der Waals materials without an externally applied magnetic field, e.g. in twisted bil…
Sensing the binding and unbinding of anyons at impurities
Glenn Wagner, Titus Neupert
Anyons are quasiparticles with fractional charge and statistics that arise in strongly correlated two-dimensional systems such as the fractional quantum Hall (FQH) effect and fract…
Tuning between a fractional topological insulator and competing phases at
Roger Brunner, Titus Neupert, Glenn Wagner
We study a spinful, time-reversal symmetric lowest Landau level model for a flatband quantum spin Hall system at total filling fraction . Such models are relevant…
Full, three-quarter, half and quarter Wigner crystals in Bernal bilayer graphene
Enrique Aguilar-Méndez, Titus Neupert, Glenn Wagner
Application of a displacement field opens a gap and enhances the Van-Hove singularities in the band structure of Bernal-stacked bilayer graphene. By adjusting the carrier density s…
How quantum fluctuations freeze a classical liquid and then melt it into a topological one
Hao Chen, Dan Mao, Andrea Kouta Dagnino +5
Topologically ordered quantum liquids are highly sought-after quantum phases of matter, and recently, fractional Chern insulators (FCIs) joined the few experimental realizations of…
Variational wavefunctions for fractional topological insulators
Glenn Wagner, Titus Neupert
Twisted transition metal dichalcogenides (TMDs) host bands with opposite Chern number for the two spin species and could thus be host for fractional topological insulator states. I…
Probing chiral symmetry with a topological domain wall sensor
Glenn Wagner, Titus Neupert, Ronny Thomale +5
Chiral symmetry is a fundamental property with profound implications for the properties of elementary particles, that implies a spectral symmetry (i.e. E => -E ) in their dispersio…
Topological excitons in moiré MoTe/WSe heterobilayers
Paul Froese, Titus Neupert, Glenn Wagner
Due to the presence of flat Chern bands, moiré transition metal dichalcogenide (TMD) bilayers are a platform to realize strongly correlated topological phases of fermions such as f…