Results 91 to 100 of about 1,108,912 (218)
Flux compactifications on (S 2 )N [PDF]
, 2014 We investigate a simple extra-dimensional model and its four-dimensional vacua. This model has a two-form flux and a positive cosmological constant, and the extra dimensions are compactified as the product of $N$ two-spheres. The theory is an interesting
Adam R. Brown, A. Dahlen, A. Masoumi
semanticscholar +1 more source
An extended definition of Anosov representation for relatively hyperbolic groups
Journal of Topology, Volume 19, Issue 2, June 2026.Abstract We define a new family of discrete representations of relatively hyperbolic groups which unifies many existing definitions and examples of geometrically finite behavior in higher rank. The definition includes the relative Anosov representations defined by Kapovich–Leeb and Zhu, and Zhu–Zimmer, as well as holonomy representations of various ...
Theodore Weisman
wiley +1 more source
Quantum tunneling in flux compactifications
Journal of Cosmology and Astroparticle Physics, 2009 40 pages, 8 ...
Blanco-Pillado, Jose J. +2 more
openaire +2 more sources
Compactifications of Type II supergravities in superspace
Journal of High Energy PhysicsWe propose a way to describe compactifications of Type II supergravities with fluxes directly from superspace. The on-shell supergravity constraints used are the ones that arise naturally from the pure spinor superstring.
Osvaldo Chandia, Brenno Carlini Vallilo
doaj +1 more source
Large-volume flux compactifications: Moduli spectrum and D3/D7 soft supersymmetry breaking [PDF]
, 2005 We present an explicit calculation of the spectrum of a general class of string models, corresponding to Calabi-Yau flux compactifications with h1,2 > h1,1 > 1 with leading perturbative and non-perturbative corrections, in which all geometric moduli are ...
J. Conlon, F. Quevedo, K. Suruliz
semanticscholar +1 more source
Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons
Communications on Pure and Applied Mathematics, Volume 79, Issue 5, Page 1151-1298, May 2026.Abstract We develop a new degree theory for 4‐dimensional, asymptotically conical gradient expanding solitons. Our theory implies the existence of gradient expanding solitons that are asymptotic to any given cone over S3$S^3$ with non‐negative scalar curvature. We also obtain a similar existence result for cones whose link is diffeomorphic to S3/Γ$S^3/\
Richard H. Bamler, Eric Chen
wiley +1 more source
On the squashed seven-sphere operator spectrum
Journal of High Energy Physics, 2021 We derive major parts of the eigenvalue spectrum of the operators on the squashed seven-sphere that appear in the compactification of eleven-dimensional supergravity.
Simon Ekhammar, Bengt E. W. Nilsson
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Fortschritte der Physik, Volume 74, Issue 4, April 2026.Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley +1 more source
Journal of High Energy Physics, 2020 Geometric modularity has recently been conjectured to be a characteristic feature of flux vacua with W = 0. This paper provides support for the conjecture by computing motivic modular forms in a direct way for several string compactifications for which ...
Rolf Schimmrigk
doaj +1 more source
Harnessing Macromolecular Crowding of Proteins for Engineering Sustainable Nanofiltration Membranes
SusMat, Volume 6, Issue 2, April 2026.Novel biodegradable and solvent‐resistant nanofiltration membranes fabricated by harnessing the macromolecular crowding of zein protein induced by solvent interactions. Scattering experiments and molecular dynamics simulations confirmed the macromolecular crowding formation and revealed the structural characteristics of the membranes.
Claudia Oviedo +6 more
wiley +1 more source