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gr-qc2026
Covariant kinetic theory of photons coupled to massive particles in curved spacetime
Long Cui, Yi-fan Cai, Xin Hao +1
This paper develops the covariant Boltzmann equation governing the coupled evolution of photons and massive particles in general curved spacetimes. We construct the collision integ…
gr-qc2026
Covariant linear response theory for a photon gas in curved spacetime
Jianan Wang, Long Cui, Bin Wu
To overcome the failure of the conventional non-relativistic description of statistics in strong gravitational fields, we develop a covariant theory for a photon gas in curved spac…
gr-qc2026
Geometric formulation for the relativistic kinetic theory of photons
Yifan Cai, Long Cui, Bin Wu +1
We provide a geometric foundation for the kinetic theory of photons. Although the induced metric on the light cone bundle is degenerate, which causes the correspon…