DIAS 85 - STP Workshop - Matrix Membranes and Emergent Spacetime

Uploaded September 2025 | Updated September 2026, 2 weeks ago

[2025-06-17]

(00:00:00) Simon Catterall - Sneaking up on lattice chiral fermions
(00:56:04) Masanori Hanada - From Banks-Fischler-Shenker-Susskind to Kogut-Susskind: Exponentially Accelerating Quantum Simulations
(01:56:43) David Berenstein - Staggered bosons and supersymmetry
(missing) Antal Jevicki - Finite N and BH Microstates
(02:55:44) Veselin Filev - Holographic probe branes and artificial neural networks

DIAS 85 - STP Workshop - Matrix Membranes and Emergent Spacetime - Day 2

Defects and Interfaces in the O(N) Model

Irelands Weather and Climate: A Journey Through Time, presented by Evelyn Cusack (Met Eireann)

$Spin-resolved Topology in Quantum Materials Speaker: Giandomenico Palumbo (DIAS) Abstract: Topological insulating (TI) phases were originally highlighted for their disorder-robust bulk responses, such as the quantized Hall conductivity of 2D Chern insulators. With the discovery of time-reversal- (T-) invariant 2D TIs, focus has since shifted to boundary states as signatures of 2D and 3D TIs and topological crystalline insulators (TCIs). However, in T-invariant 3D TCIs such as bismuth, $alpha$-BiBr, and MoTe2 -termed higher-order TCIs (HOTIs)- the boundary signatures manifest as 1D hinge states, whose configurations are dependent on sample details, and bulk signatures remain unknown. In this talk, I will introduce nested spin-resolved Wilson loops and layer constructions as tools to characterize the bulk topological properties of spinful 3D insulators. I will show that helical HOTIs realize one of three spin-resolved phases with distinct responses that are quantitatively robust to large deformations of the bulk spin-orbital texture: 3D quantum spin Hall insulators, “spin-Weyl” semimetal states with gapless spin spectra, and T-doubled axion insulator states with nontrivial partial axion angles $theta^{pm}=pi$ indicative of a 3D spin-magnetoelectric bulk response.$

What is the School of Celtic Studies? Ní hansae with Prof. Ruairí Ó hUiginn

Multigap Topological Insulators: Non-Abelian Bands, Riemannian Geometry, Quantised Optical Responses

A range three elliptic deformation of the Hubbard model

Open EFTs and Decoherence of Primordial Fluctuations

A Simple Axiom for Euclidean Quantum Field Theory

Thermodynamics as a Tool for (Quantum) Gravitational Dynamics

DIAS 85 - STP Workshop - Matrix Membranes and Emergent Spacetime - Day 1