Results 91 to 100 of about 35,569 (241)
Factorization of the Two Loop Four-Particle Amplitude in Superstring Theory Revisited
, 2005 We study in detail the factorization of the newly obtained two-loop four-particle amplitude in superstring theory. In particular some missing factors from the scalar correlators are obtained correctly, in comparing with a previous study of the ...
C.-J. Zhu +11 more
core +1 more source
Dilatonic black holes in superstring gravity [PDF]
, 2019 We solve the dilaton field equation in the background of a spherically symmetric black hole in type II superstring theory with $\alpha'^3$ corrections in arbitrary $d$ spacetime dimensions.
Moura, Filipe
core +2 more sources
Unification of Gravity and Internal Interactions
Fortschritte der Physik, Volume 72, Issue 1, January 2024.Abstract In the gauge theoretic approach of gravity, general relativity is described by gauging the symmetry of the tangent manifold in four dimensions. Usually the dimension of the tangent space is considered to be equal to the dimension of the curved manifold. However, the tangent group of a manifold of dimension d is not necessarily SOd$SO_d$.
Spyros Konitopoulos +2 more
wiley +1 more source
A Study of the Early Cosmic Dynamics in a Multifield Model of Inflation and Curvature Perturbations
Advances in Astronomy, Volume 2024, Issue 1, 2024.In this work, we study the cosmological dynamics of the early universe by employing a small field potential in the context of multifield inflation. By investigating analytically the cosmological observables, such as the number of e‐folds N, potential slow‐roll parameters ϵV, ηV, and spectral index ns which carry significant information, we show that ...
Muhammad Zahid Mughal +4 more
wiley +1 more source
Equivalence of two contour prescriptions in superstring perturbation theory
Journal of High Energy Physics, 2017 Conventional superstring perturbation theory based on the world-sheet approach gives divergent results for the S-matrix whenever the total center of mass energy of the incoming particles exceeds the threshold of production of any final state consistent ...
Ashoke Sen
doaj +1 more source
The complete worldsheet S matrix of superstrings on AdS3×S3×T4 with mixed three-form flux
Nuclear Physics B, 2015 We determine the off-shell symmetry algebra and representations of Type IIB superstring theory on AdS3×S3×T4 with mixed R–R and NS–NS three-form flux.
Thomas Lloyd +3 more
doaj
Erratum to: Cutkosky rules for superstring field theory
Journal of High Energy Physics, 2018 Superstring field theory expresses the perturbative S-matrix of superstring theory as a sum of Feynman diagrams each of which is manifestly free from ultraviolet divergences.
Roji Pius, Ashoke Sen
doaj +1 more source
Yang-Baxter deformations of the AdS 5 × T 1,1 superstring and their backgrounds
Journal of High Energy Physics, 2021 We consider three-parameter Yang-Baxter deformations of the AdS 5 × T 1,1 superstring for abelian r-matrices which are solutions of the classical Yang-Baxter equation.
Laura Rado +2 more
doaj +1 more source
On nonperturbative solutions of superstring field theory [PDF]
Physics Letters B, 2003 1+8 pages, LaTeX; v2: one reference added, to appear in Phys.
Sebastian Uhlmann +3 more
openaire +3 more sources
Quantisation of type IIB superstring theory and the matrix model
Journal of High Energy PhysicsWe discuss the path-integral quantisation of perturbative string theory and show equivalence between the Polyakov-type, Schild-type and Nambu-Goto-type formulations of critical type II superstring theory.
Yuhma Asano
doaj +1 more source