78 citations · 84 across the 5 of their papers we have counts for
5 papers
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 suitab…
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…
Should Unstable Quantum Field Theories be Lorentz Invariant?
L. Gavassino
An unstable field theory is what we obtain when we linearise the equations of an interacting field theory near an unstable state. Theories of this kind are adopted to model the ons…
Boosting unstable particles
L. Gavassino, F. Giacosa
In relativity, there is no absolute notion of simultaneity, because two clocks that are in different places can always be desynchronized by a Lorentz boost. Here, we explore the im…
Can we make sense of dissipation without causality?
Lorenzo Gavassino
Relativity opens the door to a counter-intuitive fact: a state can be stable to perturbations in one frame of reference, and unstable in another one. For this reason, the job of te…