55 citations · 255 across the 27 of their papers we have counts for
28 papers
Gravity from equilibrium thermodynamics of stretched light cones
Ana Alonso-Serrano, Luis J. Garay, Marek Liška +1
This work digs into the connection between gravity and thermodynamics of stretched light cones (SLC). They are associated with uniformly accelerating observers, who endow the SLC w…
Semi-classical spacetime thermodynamics
Ana Alonso-Serrano, Marek Liška, Michał Piotrak
We derive the semi-classical gravitational dynamics from thermodynamics of local stretched light cones in 2-dimensional dilaton gravity, explicitly treating the backreaction of qua…
Quantum estimation of cosmological parameters
Michał Piotrak, Thomas Colas, Ana Alonso-Serrano +1
Understanding how well future cosmological experiments can reconstruct the mechanism that generated primordial inhomogeneities is key to assessing the extent to which cosmology can…
Black hole thermodynamics probes the equivalence principle
Ana Alonso-Serrano, Luis J. Garay, Marek Liška
The equivalence principle for test gravitational physics strongly constrains dynamics of spacetime, providing a powerful criterion for selecting candidate theories of gravity. Howe…
Black hole solutions in quantum phenomenological gravitational dynamics
Ana Alonso-Serrano, Marco de Cesare, Manuel Del Piano
We investigate black hole solutions within a phenomenological approach to quantum gravity based on spacetime thermodynamics developed by Alonso-Serrano and Liška. The field equatio…
Equivalence principles in Weyl transverse gravity
Ana Alonso-Serrano, Luis J. Garay, Marek Liška
There exist two consistent theories of massless, self-interacting gravitons, which differ by their local symmetries: general relativity and Weyl transverse gravity. We show that th…
Gravity from thermodynamics in vacuum: Lorentz invariance and the role of Bel-Robinson tensor
Ana Alonso-Serrano, Marek Liška
Thermodynamics of local causal horizons have been shown to encode the information necessary to derive the equations governing the gravitational dynamics. We have previously shown t…
From spacetime thermodynamics to Weyl transverse gravity
Ana Alonso-Serrano, Luis J. Garay, Marek Liška
There exist two consistent theories of self-interacting gravitons: general relativity and Weyl transverse gravity. The latter has the same classical solutions as general relativity…
Particle detectors under chronological hazard
Ana Alonso-Serrano, Erickson Tjoa, Luis J. Garay +1
We analyze how the presence of closed timelike curves (CTCs) characterizing a time machine can be discerned by placing a local particle detector in a region of spacetime which is c…
Emergent Time and Time Travel in Quantum Physics
Ana Alonso-Serrano, Sebastian Schuster, Matt Visser
Entertaining the possibility of time travel will invariably challenge dearly held concepts of fundamental physics. It becomes relatively easy to construct multiple logical contradi…
Analytic Primordial Power Spectrum in the Dressed Metric Approach to Loop Quantum Cosmology and Thermodynamics of Spacetime
Ana Alonso-Serrano, Guillermo A. Mena Marugan, Antonio Vicente-Becerril
We investigate the primordial power spectrum of cosmological tensor perturbations in the dressed metric approach to Loop Quantum Cosmology. We compute the background-dependent effe…
Thermodynamics as a tool for (quantum) gravitational dynamics
Ana Alonso-Serrano, Marek Liška
The thermodynamics of local causal horizons has been shown to imply gravitational dynamics. In this essay, we discuss the principles underlying this observation, and its significan…
Friedmann equations and cosmic bounce in a modified cosmological scenario
Ana Alonso-Serrano, Marek Liška, Antonio Vicente-Becerril
In this work we present a derivation of modified Raychaudhuri and Friedmann equations from a phenomenological model of quantum gravity based on the thermodynamics of spacetime. Sta…
Emergence of quadratic gravity from entanglement equilibrium
Ana Alonso-Serrano, Marek Liška
In this work, we derive the linearised equations of quadratic gravity from entanglement equilibrium of local causal diamonds. Rather than starting from the Wald entropy prescriptio…
Noether charge formalism for Weyl invariant theories of gravity
Ana Alonso-Serrano, Luis J. Garay, Marek Liška
Gravitational theories invariant under transverse diffeomorphisms and Weyl transformations have the same classical solutions as the corresponding fully diffeomorphism invariant the…
Noether charge formalism for Weyl transverse gravity
Ana Alonso-Serrano, Luis J. Garay, Marek Liška
Weyl transverse gravity is a gravitational theory that is invariant under transverse diffeomorphisms and Weyl transformations. It is characterised by having the same classical solu…
Thermodynamics of spacetime and unimodular gravity
Ana Alonso-Serrano, Marek Liška
In this review we discuss emergence of unimodular gravity (or, more precisely, Weyl transverse gravity) from thermodynamics of spacetime. By analyzing three different ways to obtai…
The time traveler's guide to the quantization of zero modes
Ana Alonso-Serrano, Erickson Tjoa, Luis J. Garay +1
We study the relationship between the quantization of a massless scalar field on the two-dimensional Einstein cylinder and in a spacetime with a time machine. We find that the latt…
Thermodynamics of spacetime from minimal area
Ana Alonso-Serrano, Marek Liška
Motivated by exploring the interface between thermodynamics of spacetime and quantum gravity effects, we develop a heuristic derivation of Hawking temperature and Bekenstein entrop…
Quantum phenomenological gravitational dynamics: A general view from thermodynamics of spacetime
Ana Alonso-Serrano, Marek Liška
In this work we derive general quantum phenomenological equations of gravitational dynamics and analyse its features. The derivation uses the formalism developed in thermodynamics…
Nonextensive Black Hole Entropy and Quantum Gravity Effects at the Last Stages of Evaporation
Ana Alonso-Serrano, Mariusz P. Dabrowski, Hussain Gohar
We analyze the Generalized Uncertainty Principle (GUP) impact onto the nonextensive black hole thermodynamics by using Rényi entropy. We show that when introducing GUP effects, bot…
New perspective on thermodynamics of spacetime: The emergence of unimodular gravity and the equivalence of entropies
Ana Alonso-Serrano, Marek Liška
We present a novel derivation of Einstein equations from the balance between Clausius entropy crossing the boundary of a local causal diamond and entanglement entropy associated wi…
Quantum approach to a Bianchi I singularity
Ana Alonso-Serrano, Martin Bojowald, David Brizuela
The approach of a quantum state to a cosmological singularity is studied through the evolution of its moments in a simple version of a Bianchi I model. In spite of the simplicity,…
Conceptual Challenges on the Road to the Multiverse
Ana Alonso-Serrano, Gil Jannes
The current debate about a possible change of paradigm from a single universe to a multiverse scenario could have deep implications on our view of cosmology and of science in gener…