Results 61 to 70 of about 808 (166)
A universal tachyon in nearly no-scale de Sitter compactifications
Journal of High Energy Physics, 2018 We investigate de Sitter solutions of N=1 $$ \mathcal{N}=1 $$ supergravity with an F-term scalar potential near a no-scale Minkowski point, as they may in particular arise from flux compactifications in string theory.
Daniel Junghans, Marco Zagermann
doaj +1 more source
Stability of vacua and domain walls in supergravity and superstring theory
AIP Conference Proceedings, 1992 6 pages, UPR-529 ...
openaire +2 more sources
Holomorphic field theories and higher algebra
Bulletin of the London Mathematical Society, Volume 57, Issue 10, Page 2903-2974, October 2025.Abstract Aimed at complex geometers and representation theorists, this survey explores higher dimensional analogs of the rich interplay between Riemann surfaces, Virasoro and Kac‐Moody Lie algebras, and conformal blocks. We introduce a panoply of examples from physics — field theories that are holomorphic in nature, such as holomorphic Chern‐Simons ...
Owen Gwilliam, Brian R. Williams
wiley +1 more source
Systematic study of the SO(10) symmetry breaking vacua in the matrix model for type IIB superstrings [PDF]
Journal of High Energy Physics, 2011 We study the properties of the space-time that emerges dynamically from the matrix model for type IIB superstrings in ten dimensions. We calculate the free energy and the extent of space-time using the Gaussian expansion method up to the third order.
Nishimura, Jun +2 more
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InfoMat, Volume 7, Issue 9, September 2025.Ga2O3 photodetectors, particularly those dominated by the photoconductive effect, inevitably face a trade‐off between photoresponsivity and response speed. In this work, bilayer‐structure Ga2O3 films are adopted for solar‐blind photodetectors to alleviate the trade‐off between photoresponsivity and response speed.
Xiaolan Ma +10 more
wiley +1 more source
Dark Dimension With (Little) Strings Attached
Fortschritte der Physik, Volume 73, Issue 4, April 2025.Abstract A relation between dark energy and the scale of new physics in weakly coupled string theory is motivated. This mixing between infrared and ultraviolet physics leads to a unique corner for real‐world phenomenology: barring fine‐tunings, the authors are naturally led to the “dark dimension” scenario, a single mesoscopic extra dimension of micron
Ivano Basile, Dieter Lüst
wiley +1 more source
Flux vacua of the mirror octic
Journal of High Energy PhysicsWe determine all flux vacua with flux numbers N flux ≤ 10 for a type IIB orientifold-compactification on the mirror-octic three-fold. To achieve this, we develop and apply techniques for performing a complete scan of flux vacua for the whole moduli space
Erik Plauschinn, Lorenz Schlechter
doaj +1 more source
Band Tailoring Enabled Perovskite Devices for X‐Ray to Near‐Infrared Photodetection
Advanced Science, Volume 12, Issue 9, March 6, 2025.Perovskite‐based photodetectors are improved for wide‐spectrum detection X‐rays to near‐infrared using a type‐II heterojunction with tellurium. This design reduces dark current noise and enhances sensitivity, with a scalable sensor array showing promise for imaging applications.
Yi‐Chu He +14 more
wiley +1 more source
Flux vacua in type IIB compactifications on orbifolds: their finiteness and minimal string coupling
Journal of High Energy PhysicsWe perform a detailed study of (supersymmetric) moduli stabilisation in type IIB toroidal orientifolds with fluxes. We provide strong evidence towards exhaustion of the finite number of inequivalent vacua for a given total 3-form flux charge N flux.
Ignatios Antoniadis +2 more
doaj +1 more source
The Internal and External Problems of String Theory - A Philosophical View [PDF]
, 2006 String theory is at the moment the only advanced approach to a unification of all interactions, including gravity. But, in spite of the more than thirty years of its existence, it does not make any empirically testable predictions, and it is completely ...
Hedrich, Reiner
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