Results 101 to 110 of about 20,702,128 (245)
Supersymmetric solitons in gauged N $$ \mathcal{N} $$ = 8 supergravity
Journal of High Energy Physics, 2023 We consider soliton solutions in AdS4 with a flat slicing and Wilson loops around one cycle. We study the phase structure and find the ground state and identify supersymmetric solutions as a function of the Wilson loops.
Andrés Anabalón +3 more
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de Sitter State in Heterotic String Theory
Fortschritte der Physik, Volume 72, Issue 11, November 2024.Abstract Recent no‐go theorems have ruled out four‐dimensional classical de Sitter vacua in heterotic string theory. On the other hand, the absence of a well‐defined Wilsonian effective action and other related phenomena also appear to rule out such time‐dependent vacua with de Sitter isometries, even in the presence of quantum corrections.
Stephon Alexander +4 more
wiley +1 more source
Recent and new results on octonionic Bergman and Szegö kernels
Mathematical Methods in the Applied Sciences, Volume 47, Issue 10, Page 7888-7901, 15 July 2024.Very recently one has started to study Bergman and Szegö kernels in the setting of octonionic monogenic functions. In particular, explicit formulas for the Bergman kernel for the octonionic unit ball and for the octonionic right half‐space as well as a formula for the Szegö kernel for the octonionic unit ball have been established.
Rolf Sören Kraußhar
wiley +1 more source
De sitter magnetic black hole dipole with a supersymmetric horizon
Journal of High Energy Physics, 2021 We find a new non BPS solution in N = 2 D = 4 gauged supergravity coupled to U(1) gauge fields and matter. It consists in a closed universe with two extremal black holes of equal size, surrounding two singularities.
Davide Astesiano, S.L. Cacciatori
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Recycling of iron and steel slag for carbon reduction and low‐environment load application
Carbon Neutralization, Volume 3, Issue 4, Page 606-628, July 2024.This article reviews the coupling of the research progress of blast furnace slag and steel slag in glass‐ceramics, ceramic products, mineral wool, and cementitious in recent years. The research status of CO2 fixation by iron and steel slag was discussed.
Ying Xu +4 more
wiley +1 more source
Supersymmetric spacetimes in (2+1) adS-supergravity models [PDF]
, 1995 We find a class of (2+1)-dimensional spacetimes admitting Killing spinors appropriate to (2,0) adS-supergravity. The vacuum spacetimes include anti-de Sitter (adS) space and charged extreme black holes, but there are many others, including spacetimes of ...
J. M. Izquierdo, P. Townsend
semanticscholar +1 more source
Species Scale and Primordial Gravitational Waves
Fortschritte der Physik, Volume 72, Issue 6, June 2024.Abstract The species scale is a field‐dependent UV cut‐off for any effective field theory weakly coupled to gravity. In this letter, it is shown that in the context of inflationary cosmology, a detection of primordial gravitational waves will set an upper bound on the decay rate |Λs′/Λs|$|\Lambda ^{\prime }_s/\Lambda _s|$ of the species scale ...
Marco Scalisi
wiley +1 more source
New models of chaotic inflation in supergravity [PDF]
Journal of Cosmology and Astroparticle Physics, 2010 We introduce a new class of models of chaotic inflation inspired by the superconformal approach to supergravity. This class of models allows a functional freedom of choice of the inflaton potential V = |f( )|^2. The simplest model of this type has a quadratic potential m^2 ^2/2.
Renata Kallosh, Andrei Linde
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Fortschritte der Physik, Volume 72, Issue 5, May 2024.Abstract The diffeomorphism class of simply connected smooth Calabi‐Yau threefolds with torsion‐free cohomology is determined via certain basic topological invariants: the Hodge numbers, the triple intersection form, and the second Chern class.
Aditi Chandra +4 more
wiley +1 more source
Supergravity models of quintessence and supersymmetry breaking [PDF]
Nuclear Physics B - Proceedings Supplements, 2001 The issue of Supersymmetry breaking in the context of Supergravity models of Quintessence is discussed.
openaire +3 more sources