54 citations · 66 across the 3 of their papers we have counts for
3 papers
hep-lat2025
The Truncated Hankel Correlator Method
Johann Ostmeyer, Carsten Urbach
We introduce a new method to approximate Euclidean correlation functions by exponential sums. The Truncated Hankel Correlator (THC) method builds a Hankel matrix from the full corr…
hep-lat2024★ 12 cited
On the equivalence of Prony and Lanczos methods for Euclidean correlation functions
Johann Ostmeyer, Aniket Sen, Carsten Urbach
We investigate the oblique Lanczos method recently put forward in arXiv:2406.20009 for analysing Euclidean correlators in lattice field theories and show that it is analytically eq…
hep-lat2018★ 54 cited
Two- and three-body interactions in theory from lattice simulations
Fernando Romero-López, Akaki Rusetsky, Carsten Urbach
We calculate the one-, two- and three-particle energy levels for different lattice volumes in the complex theory on the lattice. We argue that the exponentially suppressed fi…