Year: 2025
Type: article
Abstract: We investigate the oblique Lanczos method recently put forward in Ref. [1] for analysing Euclidean correlators in lattice field theories and show that it is analytically equivalent to the well known Prony Generalised Eigenvalue Method (PGEVM). Moreover, we discuss that the signal-to-noise problem is not alleviated by either of these two methods. Still, both methods show clear advantages when compared to the standard effective mass approach.
Source: The European Physical Journal A
Authors: J. Ostmeyer, A. Sen, C. Urbach
Institution: University of Bonn
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,990
Funder: Deutsche Forschungsgemeinschaft
OpenAlex ID: W4407259154