2 papers
gr-qc2026
Optimized numerical evolution of perturbations across sharp background trajectory turns in multifield inflation
Guillermo F. Quispe Peña, Johor D. Peñalba Quispitupa, José T. Gálvez Ghersi
Features in the primordial power spectrum require numerical methods that are both accurate and scalable across the wide class of multifield inflationary models that produce them. S…
astro-ph.IM2023
Astrophysical foreground cleanup using non-local means
Guillermo F. Quispe Peña, Andrei V. Frolov
To create high-fidelity cosmic microwave background maps, current component separation methods rely on availability of information on different foreground components, usually throu…