Results 101 to 110 of about 89,245 (176)

Topological data analysis for the string landscape

Journal of High Energy Physics, 2019
Persistent homology computes the multiscale topology of a data set by using a sequence of discrete complexes. In this paper, we propose that persistent homology may be a useful tool for studying the structure of the landscape of string vacua. As a scaled-
Alex Cole, Gary Shiu
doaj   +1 more source

Non minimal D-type conformal matter compactified on three punctured spheres

Journal of High Energy Physics, 2020
We study compactifications of 6d non minimal (D p+3 , D p+3) type conformal matter. These can be described by N M5-branes probing a D p+3-type singularity.
Evyatar Sabag
doaj   +1 more source

Hofer–Zehnder capacity of disc tangent bundles of projective spaces

Journal of the London Mathematical Society, Volume 110, Issue 1, July 2024.
Abstract We compute the Hofer–Zehnder capacity of disc tangent bundles of the complex and real projective spaces of any dimension. The disc bundle is taken with respect to the Fubini–Study resp. round metric, but we can obtain explicit bounds for any other metric.
Johanna Bimmermann
wiley   +1 more source

On scale-separated supersymmetric $$\hbox {AdS}_2$$ AdS 2 flux vacua

European Physical Journal C: Particles and Fields
We argue that scale-separated $$\hbox {AdS}_2$$ AdS 2 vacua with at least two preserved supercharges cannot arise from flux compactifications in a regime of computational control.
Niccolò Cribiori, Fotis Farakos, Nikolaos Liatsos   +2 more
doaj   +1 more source

Toric manifolds for Flux compactification [PDF]

arXiv, 2013
We study how to use smooth, compact toric varieties for supersymmetric $AdS_4$ flux compactifications using tools of SU(3) structures, similar to $CP3$ solution. A non-vanishing globally well defined complex 3-form plays a key role in such constructions.
arxiv  

A Barren Landscape?

, 2004
We consider the generation of a non-perturbative superpotential in F-theory compactifications with flux. We derive a necessary condition for the generation of such a superpotential in F-theory.
A. Giryavets, A. L. Besse, C. Beasley, Daniel Robbins, F. Denef, K. Dasgupta, P. K. Tripathy, R. Bousso, Savdeep Sethi, T. Banks   +9 more
core   +3 more sources

Smeared versus localised sources in flux compactifications [PDF]

, 2010
We investigate whether vacuum solutions in flux compactifications that are obtained with smeared sources (orientifolds or D-branes) still survive when the sources are localised. This seems to rely on whether the solutions are BPS or not.
AR Frey, AR Frey, B Janssen, C Angelantonj, D Baumann, D Lüst, Daniel Junghans, F Marchesano, G Shiu, H-Y Chen, I Bena, J Shelton, J-P Derendinger, Johan Blåbäck, L Martucci, L Martucci, L Randall, M Graña, Marco Zagermann, MB Schulz, MR Douglas, MR Douglas, MR Douglas, MR Douglas, O DeWolfe, O DeWolfe, P Koerber, S Gurrieri, S Kachru, SB Giddings, SB Giddings, SF Hassan, SM Carroll, TH Buscher, Thomas Van Riet, Timm Wrase, UH Danielsson, Ulf H. Danielsson   +37 more
core   +2 more sources

BPS action and superpotential for heterotic string compactifications with fluxes [PDF]

, 2003
Gabriel Lopes Cardoso, Gottfried Curio, Gianguido Dall’Agata, Dieter Lüst   +3 more
openalex   +3 more sources

Can gray matter loss in early adolescence be explained by white matter growth?

Human Brain Mapping, Volume 45, Issue 9, June 15, 2024.
Cortical regions exhibiting peak average changes in gray matter and white matter volume are distinct. Abstract A fundamental puzzle about brain development is why the volume of gray matter (GM) apparently declines as white matter (WM) grows when children enter adolescence.
Jordan A. Chad, Catherine Lebel
wiley   +1 more source

Gaugino mass term for D-branes and Generalized Complex Geometry

Journal of High Energy Physics, 2020
We compute the four-dimensional gaugino mass for a Dp-brane extended in spacetime and wrapping a cycle on the internal geometry in a warped compactification with fluxes.
Mariana Graña, Nicolás Kovensky, Ander Retolaza   +2 more
doaj   +1 more source