2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/210824We evaluate the correlation function of the spectral staircase and use it to evaluate the mesoscopic particle number fluctuations in integrable systems.8 pagesMesoscale and Nanoscale PhysicsStatistical MechanicsChaotic DynamicsQuantum PhysicsCorrelation function of spectral staircase and particle number fluctuations in integrable systemstext