Results 61 to 70 of about 645 (142)

An extended definition of Anosov representation for relatively hyperbolic groups

open access: yesJournal 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

Symmetric fluxes and small tadpoles

open access: yesJournal of High Energy Physics, 2023
The analysis of type IIB flux vacua on warped Calabi-Yau orientifolds becomes considerably involved for a large number of complex structure fields.
Thibaut Coudarchet   +3 more
doaj   +1 more source

Degree theory for 4‐dimensional asymptotically conical gradient expanding solitons

open access: yesCommunications 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

SUSY phenomenology of KKLT flux compactifications [PDF]

open access: yesJournal of High Energy Physics, 2005
We study SUSY phenomenology of the KKLT (Kachru-Kallosh-Linde-Trivedi) scenario of string theory compactifications with fluxes. This setup leads to a specific pattern of soft masses and distinct phenomenological properties. In particular, it avoids the cosmological gravitino/moduli problems.
Falkowski, Adam   +2 more
openaire   +5 more sources

On flux vacua and modularity

open access: yesJournal 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

The tadpole problem

open access: yesJournal of High Energy Physics, 2021
We examine the mechanism of moduli stabilization by fluxes in the limit of a large number of moduli. We conjecture that one cannot stabilize all complex-structure moduli in F-theory at a generic point in moduli space (away from singularities) by fluxes ...
Iosif Bena   +3 more
doaj   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte 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

Heterotic Calabi-Yau compactifications with flux [PDF]

open access: yesJournal of High Energy Physics, 2013
16 pages, 2 ...
Klaput, Michael   +2 more
openaire   +3 more sources

Harnessing Macromolecular Crowding of Proteins for Engineering Sustainable Nanofiltration Membranes

open access: yesSusMat, 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

Linking Density and Nanoscale Crystallinity to Hydration in Nafion PEMFC Membranes: Insights From Experiment and Molecular Dynamics Simulations

open access: yesSmall Structures, Volume 7, Issue 3, March 2026.
Molecular dynamics and experimental analysis show that higher crystallinity in Nafion enhances molecular packing, thereby increasing effective density. A proposed model bridges experimental and molecular‐scale observations by quantitatively linking water uptake to density variations, offering a predictive framework for optimising hydration and ...
Mateja Jovanović   +5 more
wiley   +1 more source

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