2 papers
nucl-th2026
How acausal equations emerge from causal dynamics
Lorenzo Gavassino
We construct a causal and covariantly stable kinetic model whose spectrum at real wavenumbers reproduces any rest-frame stable dissipative dispersion relation via suita…
nucl-th2025
Causality constraints on radiative transfer
Lorenzo Gavassino
The standard formula, due to Spiegel, for the smoothing of temperature fluctuations by radiative transfer is unstable in relativity. This is due to the fact that Spiegel neglected…