37 citations · 135 across the 13 of their papers we have counts for
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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 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 is 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…
Measuring chaos in string scattering processes
Massimo Bianchi, Maurizio Firrotta, Jacob Sonnenschein +1
We analyze the amplitudes of one highly excited string (HES) state with two or three tachyons in open bosonic string theory. We argue that these processes are chaotic by showing th…
Measure for chaotic scattering amplitudes
Massimo Bianchi, Maurizio Firrotta, Jacob Sonnenschein +1
We propose a novel measure of chaotic scattering amplitudes. It takes the form of a log-normal distribution function for the ratios of (consecutive) spacings…
Partonic behavior of string scattering amplitudes from holographic QCD models
Massimo Bianchi, Maurizio Firrotta, Jacob Sonnenschein +1
We study the emergence of partonic behavior in scattering processes at large Mandelstam's variable from string amplitudes in holographic backgrounds. We generalize the approach…
Spinning-off stringy electro-magnetic memories
Alice Aldi, Massimo Bianchi, Maurizio Firrotta
We extend and generalise the string corrections to the EM memory to the Type I superstring including spin effects. Very much as in the simpler bosonic string context, the relevant…
String Memories ... openly retold
Alice Aldi, Massimo Bianchi, Maurizio Firrotta
We identify string corrections to the EM memory effect. Though largely negligible in the low-energy limit, the effect become relevant in high-energy collisions and in extreme event…
String Memories ... Lost and Regained
Andrea Addazi, Massimo Bianchi, Maurizio Firrotta +1
We discuss stringy corrections to the gravitational wave signal generated in the merging of two black holes. We model the merging with two BPS compact massive objects in the…
Closed superstring moduli tree-level two-point scattering amplitudes in Type IIB orientifold on
Alice Aldi, Maurizio Firrotta
We reconsider the two-point string scattering amplitudes of massless Neveu-Schwarz--Neveu-Schwarz states of Type IIB orientifold superstring theory on the disk and projective plane…
String coherent vertex operators of Neveu-Schwarz and Ramond states
Alice Aldi, Maurizio Firrotta
We present a compact expression for a coherent vertex operator in superstring theory, in the Neveu-Schwarz sector, that can be easily extended to the Ramond sector by supersymmetri…
DDF operators, open string coherent states and their scattering amplitudes
Massimo Bianchi, Maurizio Firrotta
We study interactions of string coherent states in the DDF (after Di Vecchia, Del Giudice, Fubini) formalism. For simplicity we focus on open bosonic strings. After reviewing basic…