String solitons

MJ Duff, RR Khuri, JX Lu - Physics Reports, 1995 - Elsevier
We review the status of solitons in superstring theory, with a view to understanding the
strong coupling regime. These solitonic solutions are non-singular field configurations which …

Sigma model approach to string theory

AA Tseytlin - International Journal of Modern Physics A, 1989 - World Scientific
SIGMA MODEL APPROACH TO STRING THEORY Page 1 International Journal of Modern
Physics A Vol. 4, No. 6 (1989) 1257-1318 @ World Scientific Publishing Company SIGMA …

Einstein-Gauss-Bonnet traversable wormholes satisfying the weak energy condition

MR Mehdizadeh, MK Zangeneh, FSN Lobo - Physical Review D, 2015 - APS
In this paper, we explore higher-dimensional asymptotically flat wormhole geometries in the
framework of Gauss-Bonnet (GB) gravity and investigate the effects of the GB term, by …

Black Hole Solutions with Dark Matter Halos in the Four‐Dimensional Einstein‐Gauss‐Bonnet Gravity

A Errehymy, SK Maurya, G Mustafa… - Fortschritte der …, 2023 - Wiley Online Library
Black holes (BHs) convey information about different matter‐energy distributions in their
immediate environment, as they bear the imprints of the intrinsic spacetime geometry and …

Clouds of strings in 4D Einstein–Gauss–Bonnet black holes

DV Singh, SG Ghosh, SD Maharaj - Physics of the Dark Universe, 2020 - Elsevier
Recently there has been significant interest in regularizing, a D→ 4 limit, of EGB gravity, and
the resulting regularized 4 D EGB gravities have nontrivial gravitational dynamics—namely …

Phase transition of AdS black holes in 4D EGB gravity coupled to nonlinear electrodynamics

SG Ghosh, DV Singh, R Kumar, SD Maharaj - Annals of Physics, 2021 - Elsevier
Abstract Einstein–Gauss–Bonnet (EGB) gravity is an outcome of quadratic curvature
corrections to the Einstein–Hilbert gravity action in the form of a Gauss–Bonnet (GB) term in …

[PDF][PDF] Symmetries of higher-order string gravity actions

KA Meissner - arXiv preprint hep-th/9610131, 1996 - arxiv.org
arXiv:hep-th/9610131v2 28 Oct 1996 Page 1 arXiv:hep-th/9610131v2 28 Oct 1996 CERN-TH/96-291
hep-th/9610131 Symmetries of higher-order string gravity actions Krzysztof A. Meissner 1 …

Lovelock black holes with a nonlinear Maxwell field

H Maeda, M Hassaine, C Martinez - Physical Review D—Particles, Fields …, 2009 - APS
We derive electrically charged black hole solutions of the Einstein-Gauss-Bonnet equations
with a nonlinear electrodynamics source in n (≥ 5) dimensions. The spacetimes are given …

Cloud of strings in third order Lovelock gravity

SG Ghosh, U Papnoi, SD Maharaj - Physical Review D, 2014 - APS
Lovelock theory is a natural extension of the Einstein theory of general relativity to higher
dimensions in which the first and second orders correspond, respectively, to general …

[HTML][HTML] Charged black hole solutions in Gauss-Bonnet-massive gravity

SH Hendi, S Panahiyan, BE Panah - Journal of High Energy Physics, 2016 - Springer
A bstract Motivated by high interest in the close relation between string theory and black
hole solutions, in this paper, we take into account the Einstein-Gauss-Bonnet Lagrangian in …