Moiré excitons: equilibrium or non

• Tessa Cockmeyer (UCSB)

TBD

• Po-Shen Hsin (Imperial College)

Coffee Break

Relaxation-driven band topology in moiré transition metal dichalcogenide heterobilayers

• Zoe Zhu (Boston College)

Solving billion-size topological and correlated super-moire materials with tensor networks

• Jose Lado (Aalto University)

Coffee Break

Partons and Anyon Superconductivity

• Steve Simon (Oxford)

Chiral superconductor near a fractional Chern insulator

• Taige Wang (Harvard/MIT)

Coloring in Anyon Superconductivity

• Hart Goldman (University of Minnesota)

TBD

• Xueyang Song (HKUST)

Coffee Break

Emergent heavy fermion physics and superconductivity in twisted bilayer graphene

• Ya-Hui Zhang (Johns Hopkins)

Finite-size topology

• Anne Nielsen (Aarhus University)

Coffee Break

Dinner

Chern Insulator Boundary Criticality

• Benjamin Moy (UIUC)

Rare Regions Win: The Density of States of a Disordered Weyl Semimetal, Exponent and Prefactor

• Justin Wilson (Louisiana State University)

Whether the nodal point of a three-dimensional Weyl semimetal survives weak short-range disorder has been genuinely contested: instanton calculations including fluctuations have claimed that the zero-energy density of states ρ(0) vanishes identically, while exact numerics find it finite. I will show how the question is settled within a controlled saddle-point calculation. In a supersymmetric formulation, the saddle obeys a nonlinear Weyl equation, which I solve in its exact hedgehog j = 1/2 form, and then carry out the fluctuation integral about it in full: every zero mode is accounted for — six bosonic against four fermionic — and the reduced superdeterminant is evaluated as a convergent Fredholm determinant. No fermionic zero mode beyond a Kramers doublet survives to annihilate the result. What emerges is the Nandkishore–Huse–Sondhi form with both its exponent and its absolute prefactor, ρ(0) = A w-4 exp(−s*/w2) with s* = 6.4163(2) and A = 27.47(8) for Gaussian-correlated disorder, matching exact single-cone numerics over four orders of magnitude with no fitted parameters. The density of states is therefore nonvanishing at any finite disorder strength, and the semimetal–metal transition is avoided rather than critical.

Coffee Break

The long-wavelength correlations of the composite-Fermi surface".

• Prashant Kumar (IIT Bombay)

Zero-Clustering Geometry in Realistic Fractional Quantum Hall Wave Functions

• Zhao Liu (Zhejiang University)

TBD

• Dan Mao (University of Zurich)

TBD

• Dan Parker (UCSD)

“Exploring correlation physics in M-Point moire materials

• Sid Parameswaran (University of Oxford)

TBD

• Oscar Vafek (University of Minnesota)

TBD

• Patrick Ledwith (MIT)

Skyrmion Fractional Chern Insulators

• Trithep Devakul (Stanford University)

Many Crystals in Rhombohedral Graphene

• Ahmed Abouelkomsan (MIT)

TBD

• David Mross (Weizmann Institute of Science)

TBD

• Hao-Ran Cui (University of Minnesota)

Ground-state search as an optimization problem

• Andre Fonseca (MIT)

Anyon binding at impurities

• Glenn Wagner (ETH Zurich)

Fractionalization all around: fermions, bosons, and cavities

• Raul Perea-Causin (Nordita)

Mapping the quantum limits of classical simulatability

• Leyna Shakleton (MIT)

Long-lived modes and hydrodynamic transport in interaction-dominated Fermi liquids

• Johannes Hofmann (University of Gothenburg)

TBD

• Dam Son (University of Chicago)

Symmetric quantum phase in a spin-1/2 Heisenberg model on the honeycomb lattice

• Nick Bultnick (Ghent University)

TBD

• Tomo Soejima (NYU/Flatiron)

New insights on 2D chiral many body states from Coulomb gases

• Inti Sodeman (Leipzig University)

TBD

• Hui Liu (Stockholm University)

TBD

• Bo Yang (NTU)

TBD

• Annica Black-Shaffer (Uppsala University)

(Special) AlbaNova Colloquium: The emergent "graviton" in the fractional quantum Hall effect

• Dam Son (University of Chicago)

In fractional quantum Hall states, electrons self-organize into a strongly interacting fluid with nontrivial emergent properties. It has recently been understood that fractional quantum Hall fluids accommodate one or several spin-2 excitations, which have been argued to be condensed-matter analogues of the graviton. In this talk we will review the origin of the idea of the graviton and the basic physics of the fractional quantum Hall effect. We then discuss a recent experiment claiming observation of a graviton-like mode in fractional quantum Hall effect and its broader implications.