Preprint
Jul 2026
Level statistics in the fractal phase of generalized Rosenzweig--Porter models
The Rosenzweig--Porter (RP) random matrix ensemble has emerged as a minimal model for the integrability-to-chaos crossover in quantum many-body systems. Its phase diagram features a region with fractal eigenstates, exhibiting intermediate spectral and localization properties between the fully localized and fully deloca...
Victor Delapalme, L. F. Cugliandolo, Alexander K. Hartmann et al.
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