8 citations · 11 across the 9 of their papers we have counts for
10 papers
Six-Field Rational Extended Thermodynamics of Polyatomic Gases in Curved Spacetime
Luca Gallerani, Andrea Giusti, Andrea Mentrelli +1
We formulate a generally covariant six-field Rational Extended Thermodynamics model (RET) for relativistic polyatomic gases, with the dynamical pressure as the only non-equilib…
Pulse waves in the viscoelastic Kelvin-Voigt model: a revisited approach
Juan Luis Gonzalez-Santander, Francesco Mainardi, Andrea Mentrelli
We calculate the mechanical response ) of an initially quiescent semi-infinite homogeneous medium to a pulse applied at the origin, and this is achieved within the framework…
Transient waves in linear dispersive media with dissipation: an approach based on the steepest descent path
Francesco Mainardi, Andrea Mentrelli, Juan Luis Gonza'les Santander
In the study of linear dispersive media it is of primary interest to gain knowledge of the impulse response of the material. The standard approach to compute the response involves…
On linear waves with memory in a Bessel-like medium
A. Giusti, I. Colombaro, A. Mentrelli
We discuss the propagation of harmonic and transient waves for systems governed by a wave equation with memory whose integral kernel involves ratios of modified Bessel functions of…
Quantum dust cores of black holes and their quasi-normal modes
Tommaso Bambagiotti, Luca Gallerani, Andrea Mentrelli +2
The quantum description of a gravitationally collapsed ball of dust proposed in Ref.~\cite{Casadio:2023ymt} is characterised by a linear effective Misner-Sharp-Hernandez mass funct…
Thermal aspects of the anomalous limit of Brans-Dicke gravity
L. Gallerani, A. Giusti, A. Mentrelli +1
Brans-Dicke gravity does not always reduce to General Relativity in the limit for the coupling constant. This anomalous behavior is examined within the formalism of th…
Mass (re)distribution for quantum dust cores of black holes
L. Gallerani, A. Mentrelli, A. Giusti +1
The collective ground state for a spherical symmetric dust ball has been investigated recently in [R. Casadio, Phys. Lett. B 843 (2023) 138055]. In this study, we refine that model…
Alternative formulations of the thermodynamics of scalar-tensor theories
Luca Gallerani, Marcello Miranda, Andrea Giusti +1
We explore alternative formulations of the analogy between viable Horndeski gravity and Eckart's first-order thermodynamics. We single out a class of identifications for the effect…
Energy of a non-linear viscoelastic model compatible with fractional relaxation
Andrea Giusti, Andrea Mentrelli, Tommaso Ruggeri
Recently, a non-linear model of viscoelasticity based on Rational Extended Thermodynamics was proposed in [arXiv:2312.05116]. This theory extends the evolution of the viscous stres…
On variable-order fractional linear viscoelasticity
A. Giusti, I. Colombaro, R. Garra +2
We discuss a generalisation of fractional linear viscoelasticity based on Scarpi's approach to variable-order fractional calculus. After reviewing the general mathematical framewor…