2 papers
math-ph2026
Singular barriers and quartic integrability breaking in the TTW system
Adrian M. Escobar Ruiz, Miguel E. Gómez Quintanar, Miguel E. Gómez Quintanar +3
We study the competition between resonance-induced integrability breaking and centrifugal confinement in a symmetric quartic deformation of the classical Tremblay--Turbiner--…
cond-mat.stat-mech2026
Beyond Whittle: exact finite-time multispectral statistics from a single Brownian trajectory in a harmonic trap
Isaac Pérez Castillo, François Leyvraz, Miguel Eduardo Gómez Quintanar +1
Power spectral densities are often interpreted through ensemble averages and long-time asymptotics. In many experiments, however, only a single finite record is available, so spect…