The swampland: introduction and review

E Palti - Fortschritte der Physik, 2019 - Wiley Online Library
The Swampland program aims to distinguish effective theories which can be completed into
quantum gravity in the ultraviolet from those which cannot. This article forms an introduction …

[HTML][HTML] Rectifying Einstein-Gauss-Bonnet inflation in view of GW170817

SD Odintsov, VK Oikonomou, FP Fronimos - Nuclear Physics B, 2020 - Elsevier
In this work we introduce a new theoretical framework for Einstein-Gauss-Bonnet theories of
gravity, which results to particularly elegant, functionally simple and transparent gravitational …

[HTML][HTML] Swampland implications of GW170817-compatible Einstein-Gauss-Bonnet gravity

SD Odintsov, VK Oikonomou - Physics Letters B, 2020 - Elsevier
Abstract We revisit the Einstein-Gauss-Bonnet theory in view of the GW170817 event, which
compels that the gravitational wave speed is equal to c T 2= 1 in natural units. We use an …

News from the Swampland—constraining string theory with astrophysics and cosmology

N Schöneberg, L Vacher, JDF Dias… - … of Cosmology and …, 2023 - iopscience.iop.org
Our current best guess for a unified theory of gravitation and quantum field theory (string
theory) generically predicts a set of requirements for a consistently quantized theory, the …

Rescaled Einstein-Hilbert gravity from gravity: Inflation, dark energy, and the swampland criteria

VK Oikonomou - Physical Review D, 2021 - APS
We consider the scenario that the effective gravitational Lagrangian of a minimally coupled
scalar field at large curvatures is described by a rescaled Einstein-Hilbert gravity, with the …

Inflationary dynamics and swampland criteria for modified Gauss-Bonnet gravity compatible with GW170817

SD Odintsov, VK Oikonomou, FP Fronimos - Physical Review D, 2023 - APS
In this article we present an alternative formalism for the inflationary phenomenology of
rescaled Einstein-Gauss-Bonnet models which are in agreement with the GW170817 event …

Pixelated dark energy

JJ Heckman, C Lawrie, L Lin, J Sakstein… - Fortschritte der …, 2019 - Wiley Online Library
We study the phenomenology of a recent string construction with a quantum mechanically
stable dark energy. A mild supersymmetry protects the vacuum energy but also allows TeV …

Quantum aspects of chaos and complexity from bouncing cosmology: A study with two-mode single field squeezed state formalism

P Bhargava, S Choudhury, S Chowdhury… - SciPost Physics …, 2021 - scipost.org
Abstract $ Circuit~ Complexity $, a well known computational technique has recently
become the backbone of the physics community to probe the chaotic behaviour and random …

Pulsar timing residual induced by wideband ultralight dark matter with spin 0, 1, 2

S Sun, XY Yang, YL Zhang - Physical Review D, 2022 - APS
The coherent oscillation of ultralight dark matter in the mass regime around 10-23 eV
induces changes in gravitational potential with the frequency in the nanohertz range. This …

Dark energy beyond quintessence: Constraints from the swampland

S Brahma, MW Hossain - Journal of High Energy Physics, 2019 - Springer
A bstract The string theory swampland proposes that there is no UV-completion for an
effective field theory with an exact (metastable) de Sitter vacua, thereby ruling out standard …