3 papers
hep-ph2026
Thermal Spectra Without Detailed Balance
Xingjian Lu, Shuzhe Shi
A thermal spectrum is often taken as a signature that the emitted probe has reached detailed balance with the surrounding medium. We show that this interpretation is not generally…
hep-ph2025
Decoupling hydrodynamization from thermalization via nonlinear Boltzmann equation
Xingjian Lu, Shuzhe Shi
The early thermalization puzzle arises from the unexpectedly early applicability of hydrodynamics in heavy-ion collisions. While hydrodynamics has traditionally been associated wit…
nucl-th2025
Spectral BBGKY: a scalable scheme for nonlinear Boltzmann and correlation kinetics
Xingjian Lu, Shuzhe Shi
The Bogoliubov-Born-Green-Kirkwood-Yvon (BBGKY) hierarchy provides a time-reversal-symmetric framework for describing the nonequilibrium evolution of many-body systems. Despite the…