#spectral bounds
topicspectral bounds
2 papers · 1 filter
math-ph2026
Quantum estimates for classical polynomial optimization
Oleg Evnin
The paper proposes a quantum‑mechanical variational approach that maps a multivariate homogeneous polynomial to a large operator, whose eigenvalues provide lower and upper bounds f…
nucl-th2026
Lorentz-Covariant Spectral Bounds from Thermal Quantum Field Theory: Retarded Green's Functions, Kubo Relations, and Holographic Constraints
Alisher Sanetullaev, Sarbinaz Bazarbaeva, Marhabo Beymamatova +1
The paper derives Lorentz‑covariant constraints on spectral functions in thermal quantum field theory, showing how boost frames bound the non‑hydrodynamic quasinormal mode spectrum…