2 papers
hep-ph2026
Saxion Decay and Dark Radiation in the KSVZ Axion Model
Sidhartha Samtani, Amartya Sengupta
We calculate the relativistic axion energy density produced by the decay of a curvature-displaced Peccei--Quinn condensate in a quartic KSVZ model. We follow the radial PQ field (t…
hep-ph2026
CP asymmetry and visible decay in neutrino oscillations on a quantum computer
Amartya Sengupta, Sidhartha Samtani, Ani Girgvliani +1
We use quantum simulation to study how visible neutrino decay modifies the vacuum CP asymmetry in muon-to-electron oscillations within a neutrino scenario. The decay channel…