Temporal heterogeneity shapes diffusion dynamics in complex networks
Luo, C
Lambiotte, R
Ji, P
Nature Communications
(23 Apr 2026)
A multiple-scales framework for branched channel filters
Fastnedge, T
Griffiths, I
Breward, C
Journal of Fluid Mechanics
Thu, 07 May 2026
13:00
13:00
L4
Non-Invertible Symmetries Meet Quantum Cellular Automata
Rui Wen
Abstract
Recent work has revealed intricate connections between non-invertible symmetries and quantum cellular automata (QCAs) in 1+1 dimensions. On the one hand, non-invertible symmetries themselves can be viewed as QCAs acting on abstract spin chains. On the other hand, when restricted to ordinary spin chains, non-invertible symmetries can sometimes be realized only after mixing with ordinary QCAs. In this talk, I will review these recent developments, following work of Corey Jones and collaborators, as well as Kansei Inamura.
Thu, 30 Apr 2026
13:00
13:00
L5
Some comments on Big-Small AdS Scale separation
Chris Couzens
Abstract
In an AdS compactification the no-scale-separation conjecture states that the AdS scale cannot be parametrically separated from the KK scale of the internal manifold. This calls into question the validity of the effective lower-dimensional theory whilst also making holographic duals more complicated: obtaining a dense spectrum of low-dimension operators which are strongly mixed. This also poses problems for constructing de-Sitter vacua.
I will discuss the papers Holography vs Scale Separation, Holographic Constraints on the String Landscape and A Holographic Constraint on Scale Separation which use holography to find constraints on scale separation, with the latter two papers focussing DGKT.