4 papers
Rigorous Derivation of the Wave Kinetic Equation for full -FPUT System
Katja Vassilev, Boyang Wu
The Fermi--Pasta--Ulam--Tsingou (FPUT) system, describing the evolution of coupled harmonic oscillators, has been the subject of much attention since the 1950's when experiment…
Validity condition of normal form transformation for the -FPUT system
Boyang Wu, Miguel Onorato, Zaher Hani +1
In this work, we provide a validity condition for the normal form transformation to remove the non-resonant cubic terms in the -FPUT system. We show that for a wave field with…
Gravitational form factors of pions, kaons and nucleons from dispersion relations
Xiong-Hui Cao, Feng-Kun Guo, Qu-Zhi Li +2
The gravitational form factors of pions, kaons and the nucleons are investigated by employing modern dispersive techniques and chiral perturbation theory. We determine the gravitat…
Rigorous Derivation of the Wave Kinetic Equation for -FPUT System
Boyang Wu
Wave kinetic theory has been suggested as a way to understand the longtime statistical behavior of the Fermi-Pasta-Ulam-Tsingou (FPUT) system, with the aim of determining the therm…