The 4D Einstein–Gauss–Bonnet theory of gravity: a review

PGS Fernandes, P Carrilho, T Clifton… - … and Quantum Gravity, 2022 - iopscience.iop.org
We review the topic of 4D Einstein–Gauss–Bonnet (4DEGB) gravity, which has been the
subject of considerable interest over the past two years. Our review begins with a general …

Gravity with a generalized conformal scalar field: theory and solutions

PGS Fernandes - Physical Review D, 2021 - APS
We naturally extend general relativity with a conformally coupled scalar field by only
requiring conformal invariance of the scalar field equation of motion and not of the action …

[HTML][HTML] Cosmology from quantum potential

AF Ali, S Das - Physics letters B, 2015 - Elsevier
It was shown recently that replacing classical geodesics with quantal (Bohmian) trajectories
gives rise to a quantum corrected Raychaudhuri equation (QRE). In this article we derive the …

Entropy production, hydrodynamics, and resurgence in the primordial quark-gluon plasma from holography

A Buchel, MP Heller, J Noronha - Physical Review D, 2016 - APS
Microseconds after the Big Bang quarks and gluons formed a strongly coupled
nonconformal liquid driven out of equilibrium by the expansion of the Universe. We use …

Holographic evolution with dynamical boundary gravity

C Ecker, W van der Schee, D Mateos… - Journal of high energy …, 2022 - Springer
A bstract Holography has provided valuable insights into the time evolution of strongly
coupled gauge theories in a fixed spacetime. However, this framework is insufficient if this …

[HTML][HTML] The PV phase transition of the FRW universe

SB Kong, H Abdusattar, Y Yin, H Zhang… - The European Physical …, 2022 - Springer
We define thermodynamic pressure P by work density W as the conjugate quantity of
thermodynamic volume V from field equation. We derive the equations of state P= P (V, T) for …

The dark bubbleography

S Banerjee, U Danielsson, M Zemsch - Journal of High Energy Physics, 2024 - Springer
A bstract We present the holographic construction of the dark bubble model of dark energy
and highlight the pivotal role played by the non-normalizable modes. Following the route of …

Quantum (in) stability of maximally symmetric space-times

JK Ghosh, E Kiritsis, F Nitti, V Nourry - Journal of High Energy Physics, 2023 - Springer
A bstract Classical gravity coupled to a CFT 4 (matter) is considered. The effect of the
quantum dynamics of matter on gravity is studied around maximally symmetric spaces (flat …

[HTML][HTML] Dynamical analysis in regularized 4D Einstein–Gauss–Bonnet gravity with non-minimal coupling

B Bayarsaikhan, S Khimphun, P Rithy… - The European Physical …, 2023 - Springer
We investigate the regularized four-dimensional Einstein–Gauss–Bonnet (4DEGB) gravity
with a non-minimal scalar coupling function, which is an extension of the regularized 4DEGB …

Strong-coupling dynamics and entanglement in de Sitter space

J Casalderrey-Solana, C Ecker, D Mateos… - Journal of high energy …, 2021 - Springer
A bstract We use holography to study the dynamics of a strongly-coupled gauge theory in
four-dimensional de Sitter space with Hubble rate H. The gauge theory is non-conformal …