Results 61 to 70 of about 572 (144)
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 relation between tree amplitudes of closed and open strings [PDF]
, 1986 We derive a formula which expresses any closed string tree amplitude in terms of a sum of the products of appropriate open string tree amplitudes. This formula is applicable to the heterotic string as well as to the closed bosonic string and type II ...
Tye, S. H.H., Kawai, H., Lewellen, D. C.
core +1 more source
Heterotic instantons for monad and extension bundles
Journal of High Energy Physics, 2020 We consider non-perturbative superpotentials from world-sheet instantons wrapped on holomorphic genus zero curves in heterotic string theory. These superpotential contributions feature prominently in moduli stabilization and large field axion inflation ...
Evgeny I. Buchbinder +3 more
doaj +1 more source
Higher-derivative heterotic Double Field Theory and classical double copy
Journal of High Energy Physics, 2021 The generalized Kerr-Schild ansatz (GKSA) is a powerful tool for constructing exact solutions in Double Field Theory (DFT). In this paper we focus in the heterotic formulation of DFT, considering up to four-derivative terms in the action principle, while
Eric Lescano, Jesús A. Rodríguez
doaj +1 more source
Heterotic Braneworld Gravity [PDF]
, 2009 In the past decade, there has been considerable interest in braneworld scenarios where the universe lives on a brane in a higher-dimensional bulk and gravity is modified.
LEKSONO, FITRI,ARMALIVIA
core
Model-building for fractional superstrings [PDF]
, 1992 We investigate heterotic string-type model-building for the recently proposed fractional superstring theories. We concentrate on the cases with critical space-time dimensions four and six, and find that a correspondence can be drawn between the new ...
Henry Tye, S. H., Dienes, Keith R.
core +1 more source
Locality and causality properties of light cone string field theory [PDF]
, 2004 The recent discovery of a new maximally supersymmetric background for the type IIB superstring theory has revived the interest in light cone string field theory.
Kyritisis, Konstantinos
core
Confinement from distance in metric space and its relation to cosmological constant
Journal of High Energy PhysicsWe argue that, in a theory of quantum gravity, the gauge coupling and the confinement scale of a gauge theory are related to distance in the space of metric configurations, and in turn to the cosmological constant. To support the argument, we compute the
Amineh Mohseni, Mahdi Torabian
doaj +1 more source
Worldsheet description of a massive type IIA superstring in 10D
Journal of High Energy Physics, 2023 We construct, following [1, 2], a massive M2-brane (supermembrane) as the limit of a genus two M2-brane that becomes a twice punctured Riemann surface with particular boundary conditions on the fields defined on the punctures.
M. P. Garcia del Moral +2 more
doaj +1 more source
Bosonic construction of superstring theory and related topics [PDF]
, 2002 This thesis splits into two parts. In the first part we introduce a bosonic construction of the ten-dimensional fermionic theories. This construction relies on a consistent truncation procedure which can produce fermions out of bosons. We illustrate this
Chattaraputi, A. +2 more
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