Results 131 to 140 of about 21,105,413 (272)

On Calabi‐Yau Manifolds at Strong Topological String Coupling

open access: yesFortschritte der Physik, Volume 72, Issue 12, December 2024.
Abstract It was recently shown that integrating out M2 states on Calabi‐Yau manifolds captures non‐perturbative topological string physics in the free energy. In this note, It has been shown that the resulting expression manifests a certain duality symmetry: the free energy at strong string coupling is equal to the Calabi‐Yau period at weak string ...
Jarod Hattab, Eran Palti
wiley   +1 more source

de Sitter State in Heterotic String Theory

open access: yesFortschritte 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

Sen's mechanism for self-dual super Maxwell theory

open access: yesNuclear Physics B
In several elementary particle scenarios, self-dual fields emerge as fundamental degrees of freedom. Some examples are the D=2 chiral boson, D=10 Type IIB supergravity, and D=6 chiral tensor multiplet theory.
G. Barbagallo, P.A. Grassi
doaj   +1 more source

Supergravity models of quintessence and supersymmetry breaking [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2001
The issue of Supersymmetry breaking in the context of Supergravity models of Quintessence is discussed.
openaire   +3 more sources

Recent and new results on octonionic Bergman and Szegö kernels

open access: yesMathematical 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

Off-shell N = 2 → N = 1 reduction in 4D conformal supergravity

open access: yesJournal of High Energy Physics, 2019
We discuss N = 2 → N = 1 reduction in four dimensional conformal supergravity. In particular, we keep the off-shell structure of supermultiplets (except hypermultiplets).
Yusuke Yamada
doaj   +1 more source

Supergravity, AdS/CFT Correspondence and Matrix Models [PDF]

open access: yes, 1999
The recent developments towards the possible non-perturbative formulation of string/M theory using supersymmetric Yang-Mills matrix models (SYMs) are discussed.
Yoneya, Tamiaki
core   +4 more sources

Recycling of iron and steel slag for carbon reduction and low‐environment load application

open access: yesCarbon 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

Alternative Supersymmetric Spectra [PDF]

open access: yes, 2000
We describe the features of supersymmetric spectra, alternative to and qualitatively different from that of most versions of the MSSM. The spectra are motivated by extensions of the MSSM with an extra U(1)' gauge symmetry, expected in many grand unified ...
Cleaver   +11 more
core   +2 more sources

Generalized supergravity equations for the WZW model

open access: yesPhysics Letters B
15 Pages, 1 Table, 2 Refs ...
Ali Eghbali   +2 more
openaire   +3 more sources

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