5 papers · 1 filter
Multi-dimensional chaos II: String scattering amplitudes, curve repulsion, and RMT
Massimo Bianchi, Maurizio Firrotta, Jacob Sonnenschein +1
Multi-dimensional chaos refers to processes described by erratic functions of several dynamical variables. In this letter we analyze the string scattering amplitudes of highly-exci…
One-loop mass corrections of interacting string states
Lorenzo Grimaldi, Massimo Bianchi, Maurizio Firrotta
The free string spectrum is highly degenerate, with a degeneracy that grows exponentially with the mass. Turning on a non-vanishing string coupling introduces interactions, r…
One-loop mass corrections and decay widths of Type II heavy string states
Massimo Bianchi, Maurizio Firrotta, Lorenzo Grimaldi
We approach a systematic investigation of the one-loop mass corrections to (super-)string massive higher-spin states. While the imaginary part of the relevant amplitudes are finite…
Multi-dimensional chaos I: Classical and quantum mechanics
Massimo Bianchi, Maurizio Firrotta, Jacob Sonnenschein +1
We introduce the notion of multi-dimensional chaos that applies to processes described by erratic functions of several dynamical variables. We employ this concept in the interpreta…
From spectral to scattering form factor
Massimo Bianchi, Maurizio Firrotta, Jacob Sonnenschein +1
We propose a novel indicator for chaotic quantum scattering processes, the scattering form factor (ScFF). It is based on mapping the locations of peaks in the scattering amplitude…