Results 111 to 120 of about 1,108,912 (218)

Geometric algebra techniques in flux compactifications (II) [PDF]

, 2012
A bstractWe study constrained generalized Killing spinors over the metric cone and cylinder of a (pseudo-)Riemannian manifold, developing a toolkit which can be used to investigate certain problems arising in supersymmetric flux compactifications of ...
C. Lazaroiu, E. Babalic
semanticscholar   +1 more source

Theta divisors and permutohedra

Journal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract We establish an intriguing relation of the smooth theta divisor Θn$\Theta ^n$ with permutohedron Πn$\Pi ^n$ and the corresponding toric variety XΠn$X_\Pi ^n$. In particular, we show that the generalised Todd genus of the theta divisor Θn$\Theta ^n$ coincides with h$h$‐polynomial of permutohedron Πn$\Pi ^n$ and thus is different from the same ...
V. M. Buchstaber, A. P. Veselov
wiley   +1 more source

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

Journal 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

Compactifications of strata of differentials

Bulletin of the London Mathematical Society, Volume 57, Issue 12, Page 3621-3636, December 2025.
Abstract In this informal expository note, we quickly introduce and survey compactifications of strata of holomorphic 1‐forms on Riemann surfaces, that is, spaces of translation surfaces. In the last decade, several of these have been constructed, studied, and successfully applied to problems.
Benjamin Dozier
wiley   +1 more source

Analytics of type IIB flux vacua and their mass spectra

Journal of High Energy Physics, 2023
We analyze the tree-level potential of type IIB flux compactifications in warped Calabi-Yau orientifolds, in regions of weak coupling and moderately large complex structure.
Thibaut Coudarchet, Fernando Marchesano, David Prieto, Mikel A. Urkiola   +3 more
doaj   +1 more source

Charting the landscape of N = 4 flux compactifications [PDF]

, 2011
We analyse the vacuum structure of isotropic Z2 × Z2 flux compactifications, allowing for a single set of sources. Combining algebraic geometry with supergravity techniques, we are able to classify all vacua for both type IIA and IIB backgrounds with ...
Diederik Roest, Guarino, Adolfo, Roest, Diederik,, Dibitetto, Giuseppe, Adolfo Guarino, Roest, Diederik, Roest, Diederik; id_orcid, Dibitetto, Giuseppe,, Guarino, Adolfo,, Giuseppe Dibitetto   +9 more
core   +1 more source

Dual spaces of geodesic currents

Journal 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

Fouling in Emulsion Polymerization: Fundamentals and Methods of Investigation

Journal 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, Kevin M. Hoffmann, Olinda Sidorow, Stephan Scholl, Wolfgang Augustin, Diethelm Johannsmann   +5 more
wiley   +1 more source

Scale separation from O-planes

Journal 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

Tunable holographic metasurfaces for augmented and virtual reality

Nanophotonics, 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, Andrew Lininger, Cataldo Strangi, Mark A. Griswold, Giuseppe Strangi   +4 more
wiley   +1 more source