Results 111 to 120 of about 1,110,824 (191)

SO(32) heterotic standard model vacua in general Calabi-Yau compactifications

open access: yesJournal of High Energy Physics, 2018
We study a direct flux breaking scenario in SO(32) heterotic string theory on general Calabi-Yau threefolds. The direct flux breaking, corresponding to hypercharge flux breaking in the F-theory context, allows us to derive the Standard Model in general ...
Hajime Otsuka, Kenta Takemoto
doaj   +1 more source

The tadpole conjecture in asymptotic limits

open access: yesJournal of High Energy Physics, 2022
The tadpole conjecture suggests that the complete stabilization of complex structure deformations in Type IIB and F-theory flux compactifications is severely obstructed by the tadpole bound on the fluxes.
Mariana Graña   +4 more
doaj   +1 more source

On mysteriously missing T-duals, H-flux and the T-duality group

open access: yes, 2004
A general formula for the topology and H-flux of the T-duals of type II string theories with H-flux on toroidal compactifications is presented here.
Mathai, Varghese, Rosenberg, Jonathan
core   +1 more source

Dual spaces of geodesic currents

open access: yesJournal of Topology, Volume 18, Issue 4, December 2025.
Abstract Every geodesic current on a hyperbolic surface has an associated dual space. If the current is a lamination, this dual embeds isometrically into a real tree. We show that, in general, the dual space is a Gromov hyperbolic metric tree‐graded space, and express its Gromov hyperbolicity constant in terms of the geodesic current.
Luca De Rosa, Dídac Martínez‐Granado
wiley   +1 more source

A new de Sitter solution with a weakly warped deformed conifold

open access: yesJournal of High Energy Physics, 2021
We revisit moduli stabilisation for type IIB flux compactifications that include a warped throat region corresponding to a warped deformed conifold, with an anti-D3-brane sitting at its tip.
Bruno Valeixo Bento   +3 more
doaj   +1 more source

Fouling in Emulsion Polymerization: Fundamentals and Methods of Investigation

open access: yesJournal of Applied Polymer Science, Volume 142, Issue 43, November 15, 2025.
ABSTRACT The current understanding of fouling in emulsion polymerization is summarized from an engineering perspective and from a physical‐chemistry perspective. Emulsion polymerization in semibatch mode offers better control over the number of particles and side reactions than batch mode. Both reaction fouling and particulate fouling are observed, the
Holly A. Huellemeier   +5 more
wiley   +1 more source

Open string wavefunctions in flux compactifications

open access: yes, 2009
We consider compactifications of type I supergravity on manifolds with SU(3) structure, in the presence of RR fluxes and magnetized D9-branes, and analyze the generalized Dirac and Laplace-Beltrami operators associated to the D9-brane worldvolume fields.
  +48 more
core   +1 more source

Moduli Stabilization and Cosmology of Type IIB on SU(2)-Structure Orientifolds [PDF]

open access: yes, 2010
We consider type IIB flux compactifications on six-dimensional SU(2)-structure manifolds with O5- and O7-planes. These six-dimensional spaces allow not only for F_3 and H_3 fluxes but also for F_1 and F_5 fluxes. We derive the four-dimensional N=1 scalar
A Achucarro   +92 more
core   +4 more sources

Tunable holographic metasurfaces for augmented and virtual reality

open access: yesNanophotonics, Volume 14, Issue 23, Page 3813-3823, 02 November 2025.
Abstract Augmented and virtual reality (AR/VR) is transforming how humans interact with technology in a wide range of fields and industries, from healthcare and education to entertainment. However, current device limitations have impeded wider integration. Tunable holographic metasurfaces represent a promising platform for revolutionizing AR/VR devices
Akeshi Aththanayake   +4 more
wiley   +1 more source

Scale separation from O-planes

open access: yesJournal of High Energy Physics
Orientifold planes play a crucial role in flux compactifications of string theory, and we demonstrate their deep connection to achieving scale-separated solutions.
George Tringas, Timm Wrase
doaj   +1 more source

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