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Updated: May 12, 2025

ARL Spectral Fitting as an Application to Augment Spectral Data via Franck-Condon Lineshape Analysis and Color Analysis
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Single-Particle Universality of the Many-Body Spectral Form Factor

Michael O Flynn1,2, Lev Vidmar3,4, Tatsuhiko N Ikeda1,5,6

  • 1Boston University, Department of Physics, Boston, Massachusetts 02215, USA.

Physical Review Letters
|May 9, 2025
PubMed
Summary

We studied fermion systems and found that chaotic single-particle dynamics lead to exponential growth in spectral form factors (SFFs). Introducing interactions causes a crossover to linear growth, consistent with many-body universality.

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