activity
19942026
most citedRandom Network Models and Quantum Phase Transitions in Two Dimensions

184 citations · 1.4k across the 69 of their papers we have counts for

collaborators

70 papers

cond-mat.dis-nn2026

Probing the Spacetime Structure of Entanglement in Monitored Quantum Circuits with Graph Neural Networks

Javad Vahedi, Stefan Kettemann

Global entanglement in quantum many-body systems is inherently nonlocal, raising the question of whether it can be inferred from local observations. We investigate this problem in…

cond-mat.dis-nn2026

Machine Learning the Strong Disorder Renormalization Group Method for Disordered Quantum Spin Chains

A. Ustyuzhanin, J. Vahedi, S. Kettemann

We train machine learning algorithms to infer the entanglement structure of disordered long-range interacting quantum spin chains by learning from the strong disorder renormalisati…

cond-mat.dis-nn2025★ 1 cited

Strong Disorder Renormalization Group Method for Bond Disordered Antiferromagnetic Quantum Spin Chains with Long Range Interactions: Ground State Properties

Stefan Kettemann

We introduce and implement a reformulation of the strong disorder renormalization group method in real space, well suited to study bond disordered antiferromagnetic power law coupl…

cond-mat.str-el2024

Competition between Kondo Effect and RKKY Coupling

Stefan Kettemann

When magnetic moments are immersed into the Fermi sea of itinerant electrons, rich quantum physics emerges. This is relevant for a wide range of materials including heavy Fermion s…

nlin.AO2023

Local versus global stability in dynamical systems with consecutive Hopf-Bifurcations

Philipp C. Böttcher, Benjamin Schäfer, Stefan Kettemann +2

Quantifying the stability of an equilibrium is central in the theory of dynamical systems as well as in engineering and control. A comprehensive picture must include the response t…

cond-mat.dis-nn2023

Entanglement Entropy Growth in Disordered Spin Chains with Tunable Range Interactions

Youcef Mohdeb, Javad Vahedi, Ravindra N. Bhatt +2

The non-equilibrium dynamics of disordered many-body quantum systems after a global quantum quench unveils important insights about the competition between interactions and disorde…