Results 91 to 100 of about 683 (126)

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

open access: yes, 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

Flux vacua of the mirror octic

open access: yesJournal of High Energy Physics
We determine all flux vacua with flux numbers N flux ≤ 10 for a type IIB orientifold-compactification on the mirror-octic three-fold. To achieve this, we develop and apply techniques for performing a complete scan of flux vacua for the whole moduli space
Erik Plauschinn, Lorenz Schlechter
doaj   +1 more source

Flux vacua in type IIB compactifications on orbifolds: their finiteness and minimal string coupling

open access: yesJournal of High Energy Physics
We perform a detailed study of (supersymmetric) moduli stabilisation in type IIB toroidal orientifolds with fluxes. We provide strong evidence towards exhaustion of the finite number of inequivalent vacua for a given total 3-form flux charge N flux.
Ignatios Antoniadis   +2 more
doaj   +1 more source

Inflation with a graceful exit in a random landscape

open access: yesJournal of High Energy Physics, 2017
We develop a stochastic description of small-field inflationary histories with a graceful exit in a random potential whose Hessian is a Gaussian random matrix as a model of the unstructured part of the string landscape.
F. G. Pedro, A. Westphal
doaj   +1 more source

Tadpole conjecture in non-geometric backgrounds

open access: yesJournal of High Energy Physics
Calabi-Yau compactifications have typically a large number of complex structure and/or Kähler moduli that have to be stabilised in phenomenologically-relevant vacua. The former can in principle be done by fluxes in type IIB solutions.
Katrin Becker   +5 more
doaj   +1 more source

dS vacua and the swampland

open access: yesJournal of High Energy Physics, 2019
In this note we revisit some of the recent 10d and 4d arguments suggesting that the uplifting of supersymmetric AdS vacua leads to a flattening of the potential, preventing the formation of dS vacua.
Renata Kallosh   +3 more
doaj   +1 more source

A note on O6 intersections in AdS flux vacua

open access: yesJournal of High Energy Physics
The DGKT-CFI construction of AdS flux vacua in type IIA string theory has interesting features such as classical moduli stabilization and a parametric scale separation between the Hubble scale and the Kaluza-Klein scale.
Daniel Junghans
doaj   +1 more source

An index for flux vacua

open access: yesJournal of High Energy Physics
We propose to use the winding number of the gradient of a scalar potential as a simple topological index that relates critical points in the interior of the scalar field space to the behavior of the potential at the (asymptotic) boundary of the field ...
Severin Lüst
doaj   +1 more source

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