Topological bands for ultracold atoms

NR Cooper, J Dalibard, IB Spielman - Reviews of modern physics, 2019 - APS
There have been significant recent advances in realizing band structures with geometrical
and topological features in experiments on cold atomic gases. This review summarizes …

Topological quantum matter with ultracold gases in optical lattices

N Goldman, JC Budich, P Zoller - Nature Physics, 2016 - nature.com
Since the discovery of topological insulators, many topological phases have been predicted
and realized in a range of different systems, providing both fascinating physics and exciting …

Exact landau level description of geometry and interaction in a flatband

J Wang, J Cano, AJ Millis, Z Liu, B Yang - Physical review letters, 2021 - APS
Flatbands appear in many condensed matter systems, including the two-dimensional
electron gas in a high magnetic field, correlated materials, and moiré heterostructures. They …

Pressure-enhanced fractional Chern insulators along a magic line in moiré transition metal dichalcogenides

N Morales-Durán, J Wang, GR Schleder, M Angeli… - Physical Review …, 2023 - APS
We show that pressure applied to twisted WSe 2 can enhance the many-body gap and
region of stability of a fractional Chern insulator at filling ν= 1/3. Our results are based on …

Chiral ground-state currents of interacting photons in a synthetic magnetic field

P Roushan, C Neill, A Megrant, Y Chen, R Babbush… - Nature Physics, 2017 - nature.com
The intriguing many-body phases of quantum matter arise from the interplay of particle
interactions, spatial symmetries, and external fields. Generating these phases in an …

Time-and site-resolved dynamics in a topological circuit

J Ningyuan, C Owens, A Sommer, D Schuster, J Simon - Physical Review X, 2015 - APS
From studies of exotic quantum many-body phenomena to applications in spintronics and
quantum information processing, topological materials are poised to revolutionize the …

Fractional quantum Hall states at zero magnetic field

T Neupert, L Santos, C Chamon, C Mudry - Physical review letters, 2011 - APS
We present a simple prescription to flatten isolated Bloch bands with a nonzero Chern
number. We first show that approximate flattening of bands with a nonzero Chern number is …

Topological flat band models and fractional Chern insulators

EJ Bergholtz, Z Liu - International Journal of Modern Physics B, 2013 - World Scientific
Topological insulators and their intriguing edge states can be understood in a single-particle
picture and can as such be exhaustively classified. Interactions significantly complicate this …

Fractional quantum Hall physics in topological flat bands

SA Parameswaran, R Roy, SL Sondhi - Comptes Rendus Physique, 2013 - Elsevier
We present a pedagogical review of the physics of fractional Chern insulators with a
particular focus on the connection to the fractional quantum Hall effect. While the latter …

Hierarchy of ideal flatbands in chiral twisted multilayer graphene models

J Wang, Z Liu - Physical Review Letters, 2022 - APS
We propose models of twisted multilayer graphene that exhibit exactly flat Bloch bands with
arbitrary Chern numbers and ideal band geometries. The models are constructed by twisting …