Results 91 to 100 of about 657 (140)

100 years of mathematical cosmology: Models, theories and problems, Part B. [PDF]

Philos Trans A Math Phys Eng Sci, 2022
Cotsakis S, Yefremov AP.
europepmc   +1 more source

Detection of early-universe gravitational-wave signatures and fundamental physics. [PDF]

Gen Relativ Gravit, 2022
Caldwell R, Cui Y, Guo HK, Mandic V, Mariotti A, No JM, Ramsey-Musolf MJ, Sakellariadou M, Sinha K, Wang LT, White G, Zhao Y, An H, Bian L, Caprini C, Clesse S, Cline JM, Cusin G, Fornal B, Jinno R, Laurent B, Levi N, Lyu KF, Martinez M, Miller AL, Redigolo D, Scarlata C, Sevrin A, Haghi BSE, Shu J, Siemens X, Steer DA, Sundrum R, Tamarit C, Weir DJ, Xie KP, Yang FW, Zhou S.   +37 more
europepmc   +1 more source

From Minkowski to de Sitter in multifield no-scale models

Journal of High Energy Physics, 2019
We show the uniqueness of superpotentials leading to Minkowski vacua of single-field no-scale supergravity models, and the construction of dS/AdS solutions using pairs of these single-field Minkowski superpotentials.
John Ellis, Balakrishnan Nagaraj, Dimitri V. Nanopoulos, Keith A. Olive, Sarunas Verner   +4 more
doaj   +1 more source

Abelian F-theory models with charge-3 and charge-4 matter

Journal of High Energy Physics, 2018
This paper analyzes U(1) F-theory models admitting matter with charges q = 3 and 4. First, we systematically derive a q = 3 construction that generalizes the previous q = 3 examples.
Nikhil Raghuram
doaj   +1 more source

Linking the supersymmetric standard model to the cosmological constant. [PDF]

J High Energy Phys, 2021
Qiu YC, Tye SH.
europepmc   +1 more source

The String Swampland and de Sitter Vacua: A Consistent Perspective for Superstrings and Multi-fold Universes

, 2023
In a multi-fold universe, gravity emerges from Entanglement through the multi-fold mechanisms. As a result, gravity-like effects appear in between entangled particles that they be real or virtual. Long range, massless gravity results from entanglement of massless virtual particles.
openaire   +1 more source

Uplifts of maximal supergravities and transitions to non-geometric vacua

Journal of High Energy Physics, 2019
We describe a new procedure to obtain consistent backgrounds that uplift vacua and deformations of various maximal gauged supergravities by taking a known solution and performing singular limits along the moduli space of the corresponding 4-dimensional ...
Gianguido Dall’Agata, Gianluca Inverso, Paolo Spezzati   +2 more
doaj   +1 more source

Extensions of a scale-separated AdS4 solution and their mass spectrum

Journal of High Energy Physics
We consider two extensions of the so-called DGKT solution, a 4d scale-separated anti-de Sitter (AdS) solution obtained as a compactification on a 6d torus orbifold. Each extension consists in a specific large n expansion beyond the DGKT solution, where n
David Andriot, George Tringas
doaj   +1 more source

Solvable models of quantum black holes: a review on Jackiw-Teitelboim gravity. [PDF]

Living Rev Relativ, 2023
Mertens TG, Turiaci GJ.
europepmc   +1 more source

Conflicts with de Sitter Vacua in Superstring Theory

McGill Science Undergraduate Research Journal
Models of our universe lack consistency at different energy scales, so we require a theory with ultraviolet (UV) completion such as string theory. A suitable candidate to model our universe in this framework is de Sitter space, a spacetime which expands and has positive curvature.
openaire   +1 more source