97 citations · 800 across the 35 of their papers we have counts for
13 papers · 1 filter
Heat propagation in rotating relativistic bodies
Lorenzo Gavassino, Marco Antonelli
We investigate heat propagation in rigidly rotating bodies within the theory of general relativity. Using a first-order gradient expansion, we derive a universal partial differenti…
The Science of the Einstein Telescope
Adrian Abac, Raul Abramo, Simone Albanesi +485
Einstein Telescope (ET) is the European project for a gravitational-wave (GW) observatory of third-generation. In this paper we present a comprehensive discussion of its science ob…
Relativistic Liquids: GENERIC or EIT?
Lorenzo Gavassino, Marco Antonelli
We study the GENERIC hydrodynamic theory for relativistic liquids formulated by Ottinger and collaborators. We use the maximum entropy principle to derive its conditions for linear…
Symmetric-hyperbolic quasi-hydrodynamics
Lorenzo Gavassino, Marco Antonelli, Brynmor Haskell
We set up a general framework for systematically building and classifying, in the linear regime, causal and stable dissipative hydrodynamic theories that, alongside with the usual…
Simulating bulk viscosity in neutron stars. II. Evolution in spherical symmetry
Giovanni Camelio, Lorenzo Gavassino, Marco Antonelli +2
Out-of-equilibrium reactions between different particle species are the main processes contributing to bulk viscosity in neutron stars. In this work, we numerically compare three d…
Simulating bulk viscosity in neutron stars. I. Formalism
Giovanni Camelio, Lorenzo Gavassino, Marco Antonelli +2
The faithful inclusion of the effects of bulk viscosity induced by the presence of chemical reactions is an important issue for simulations of core-collapse supernovae, binary neut…
Extending Israel and Stewart hydrodynamics to relativistic superfluids via Carter's multifluid approach
Lorenzo Gavassino, Marco Antonelli, Brynmor Haskell
We construct a relativistic model for bulk viscosity and heat conduction in a superfluid. Building on the principles of Unified Extended Irreversible Thermodynamics, the model is d…
Unified Extended Irreversible Thermodynamics and the stability of relativistic theories for dissipation
Lorenzo Gavassino, Marco Antonelli
In a relativistic context, the main purpose of Extended Irreversible Thermodynamics (EIT) is to generalize the principles of non-equilibrium thermodynamics to the domain of fluid d…
Thermodynamic stability implies causality
Lorenzo Gavassino, Marco Antonelli, Brynmor Haskell
The stability conditions of a relativistic hydrodynamic theory can be derived directly from the requirement that the entropy should be maximised in equilibrium. Here we use a simpl…
Multifluid Modelling of Relativistic Radiation Hydrodynamics
Lorenzo Gavassino, Marco Antonelli, Brynmor Haskell
The formulation of a universal theory for bulk viscosity and heat conduction represents a theoretical challenge for our understanding of relativistic fluid dynamics. Recently, it h…
When the entropy has no maximum: A new perspective on the instability of the first-order theories of dissipation
Lorenzo Gavassino, Marco Antonelli, Brynmor Haskell
The first-order relativistic fluid theories of dissipation proposed by Eckart and Landau-Lifshitz have been proved to be unstable. They admit solutions which start in proximity of…
Bulk viscosity in relativistic fluids: from thermodynamics to hydrodynamics
Lorenzo Gavassino, Marco Antonelli, Brynmor Haskell
The approach of extended irreversible thermodynamics consists of promoting the dissipative fluxes to non-equilibrium thermodynamic variables. In a relativistic context, this natura…
Thermodynamics of uncharged relativistic multifluids
Lorenzo Gavassino, Marco Antonelli
The internal layers of neutron stars are expected to contain several superfluid components that can significantly affect their dynamics. The description of such objects should rely…