3 papers
physics.comp-ph2025
A modified-residue prescription to calculate dynamical correlation functions
Igor Benek-Lins, Jonathan Discenza, Saurabh Maiti
One of the challenges in using numerical methods to address many-body problems is the multi-dimensional integration over poles. More often that not, one needs such integrations to…
cond-mat.supr-con2024
Universal nonanalytic features in response functions of anisotropic superconductors
Igor Benek-Lins, Dean Fountas, Jonathan Discenza +1
Nonanalytic features are interesting in physics as they carry valuable information about the physical properties of the system. These properties manifest themselves in observables…
cond-mat.str-el2023
Many-body physics-induced selection rules: application to Raman spectroscopy
Igor Benek-Lins, Saurabh Maiti
Spectroscopic measurements in quantum systems are subject to selection rules, usually based on space-time symmetries, that allow or disallow transitions between states. In many-bod…