3 papers
cond-mat.str-el2026
Analytic continuation of Green's functions with a neural network
Fakher Assaad, Johanna Erdmenger, Anika Götz +3
An important problem in many-body physics is to reconstruct the spectral density from the imaginary-time domain Green's function. Typically, the imaginary-time Green's function is…
physics.comp-ph2025
Hyperbolic tiling neighborhoods in O(1) time
Yanick Thurn, Manuel Schrauth, Johanna Erdmenger
Tilings of the hyperbolic plane are of significant interest among many branches of mathematics, physics and computer science. Yet, their construction remains a non-trivial task. Cu…
hep-th2024
Discrete JT gravity as an Ising model
Johanna Erdmenger, Jonathan Karl, Yanick Thurn +2
Inspired by the program of discrete holography, we show that Jackiw-Teitelboim (JT) gravity on a hyperbolic tiling of Euclidean AdS gives rise to an Ising model on the dual lat…