136 citations · 615 across the 32 of their papers we have counts for
16 papers · 1 filter
Hamiltonian formulation of a gravity model from (A)dS Yang-Mills theory
Goffredo Chirco, Alfonso Lamberti, Patrizia Vitale
We study the Hamiltonian formulation of a gravity model obtained from a Yang--Mills theory for a one-parameter family of (A)dS Lie algebras parametrized by , when the family of…
Gravity model from (A)dS Yang-Mills theory
Goffredo Chirco, Alfonso Lamberti, Lucio Vacchiano +1
We investigate the relationship between a one-parameter family of (anti-)de Sitter Yang-Mills models and a model of Einstein-Palatini gravity with matter, realized through Inönu-Wi…
Generalized Gibbs Ensembles in Discrete Quantum Gravity
Goffredo Chirco, Isha Kotecha
Maximum entropy principle and Souriau's symplectic generalization of Gibbs states have provided crucial insights leading to extensions of standard equilibrium statistical mechanics…
Statistical equilibrium of tetrahedra from maximum entropy principle
Goffredo Chirco, Isha Kotecha, Daniele Oriti
Discrete formulations of (quantum) gravity in four spacetime dimensions build space out of tetrahedra. We investigate a statistical mechanical system of tetrahedra from a many-body…
On the fate of the Hoop Conjecture in quantum gravity
Fabio Anzà, Goffredo Chirco
We consider a closed region of 3d quantum space modeled by spin-networks. Using the concentration of measure phenomenon we prove that, whenever the ratio between the bo…
Fisher Metric, Geometric Entanglement and Spin Networks
Goffredo Chirco, Fabio M. Mele, Daniele Oriti +1
Starting from recent results on the geometric formulation of quantum mechanics, we propose a new information geometric characterization of entanglement for spin network states in t…
Group Field theory and Tensor Networks: towards a Ryu-Takayanagi formula in full quantum gravity
Goffredo Chirco, Daniele Oriti, Mingyi Zhang
We establish a dictionary between group field theory (thus, spin networks and random tensors) states and generalized random tensor networks. Then, we use this dictionary to compute…
Statistical mechanics of covariant systems with multi-fingered time
Goffredo Chirco, Thibaut Josset
Recently, in [Class. Quantum Grav. 33 (2016) 045005], the authors proposed a new approach extending the framework of statistical mechanics to reparametrization-invariant systems wi…
Typicality in spin network states of quantum geometry
Fabio Anzà, Goffredo Chirco
In this work, we extend the so-called typicality approach, originally formulated in statistical mechanics contexts, to -invariant spin-network states. Our results do not dep…
Statistical mechanics of reparametrization-invariant systems. It takes three to tango
Goffredo Chirco, Thibaut Josset, Carlo Rovelli
It is notoriously difficult to apply statistical mechanics to generally covariant systems, because the notions of time, energy and equilibrium are seriously modified in this contex…
Thermally correlated states in Loop Quantum Gravity
Goffredo Chirco, Carlo Rovelli, Paola Ruggiero
We study a class of loop-quantum-gravity states characterized by (ultra-local) thermal correlations that reproduce some features of the ultraviolet structure of the perturbative qu…
Spacetime thermodynamics without hidden degrees of freedom
Goffredo Chirco, Hal M. Haggard, Aldo Riello +1
A celebrated result by Jacobson is the derivation of Einstein's equations from Unruh's temperature, the Bekenstein-Hawking entropy and the Clausius relation. This has been repeated…
Coupling and thermal equilibrium in general-covariant systems
Goffredo Chirco, Hal M. Haggard, Carlo Rovelli
A fully general-covariant formulation of statistical mechanics is still lacking. We take a step toward this theory by studying the meaning of statistical equilibrium for coupled, p…
Reversible and Irreversible Spacetime Thermodynamics for General Brans-Dicke Theories
Goffredo Chirco, Christopher Eling, Stefano Liberati
We derive the equations of motion for Palatini F(R) gravity by applying an entropy balance law T dS= δQ+δN to the local Rindler wedge that can be constructed at each point of space…
Gedanken experiments on nearly extremal black holes and the Third Law
Goffredo Chirco, Stefano Liberati, Thomas P. Sotiriou
A gedanken experiment in which a black hole is pushed to spin at its maximal rate by tossing into it a test body is considered. After demonstrating that this is kinematically possi…
Non-equilibrium Thermodynamics of Spacetime: the Role of Gravitational Dissipation
G. Chirco, S. Liberati
In arXiv:gr-qc/9504004 it was shown that the Einstein equation can be derived as a local constitutive equation for an equilibrium spacetime thermodynamics. More recently, in the at…