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Free field theory as a string theory? [PDF]

open access: yesComptes Rendus. Physique, 2004
An approach to systematically implement open-closed string duality for free large N gauge theories is summarised. We show how the relevant closed string moduli space emerges from a reorganisation of the Feynman diagrams contributing to free field correlators.
openaire   +2 more sources

Gravitational Scattering Amplitudes and Closed String Field Theory in the Proper-Time Gauge

open access: yesEPJ Web of Conferences, 2018
We construct a covariant closed string field theory by extending recent works on the covariant open string field theory in the proper-time gauge. Rewriting the string scattering amplitudes generated by the closed string field theory in terms of the ...
Lee Taejin
doaj   +1 more source

Background independence of closed superstring field theory

open access: yesJournal of High Energy Physics, 2018
Given a family of world-sheet superconformal field theories related by marginal deformation, we can formulate superstring field theory based on any of these world-sheet theories.
Ashoke Sen
doaj   +1 more source

Asymptotic scalar field cosmology in string theory

open access: yesJournal of High Energy Physics, 2022
Asymptotic (late-time) cosmology depends on the asymptotic (infinite-distance) limits of scalar field space in string theory. Such limits feature an exponentially decaying potential V ~ exp(−cϕ) with corresponding Hubble scale H ~ ϕ ̇ 2 + 2 V $$ \sqrt ...
Tom Rudelius
doaj   +1 more source

Local string field theory [PDF]

open access: yesXIVth International Congress on Mathematical Physics, 2006
We consider open bosonic strings. The non-interacting multi-string theory is described by certain free string field operators which we construct. These are shown to have local commutators with respect to a center of mass coordinate. The construction is carried out both in the light cone gauge and in a covariant formulation.
openaire   +2 more sources

Closed string deformations in open string field theory. Part II. Superstring

open access: yesJournal of High Energy Physics, 2021
This is the second paper of a series of three. We construct effective open-closed superstring couplings by classically integrating out massive fields from open superstring field theories coupled to an elementary gauge invariant tadpole proportional to an
Carlo Maccaferri, Jakub Vošmera
doaj   +1 more source

Nonrelativistic string theory and T-duality

open access: yesJournal of High Energy Physics, 2018
Nonrelativistic string theory in flat spacetime is described by a two-dimensional quantum field theory with a nonrelativistic global symmetry acting on the worldsheet fields. Nonrelativistic string theory is unitary, ultraviolet complete and has a string
Eric Bergshoeff, Jaume Gomis, Ziqi Yan
doaj   +1 more source

String cosmology — Large-field inflation in string theory [PDF]

open access: yesInternational Journal of Modern Physics A, 2015
This is a short review of string cosmology. We wish to connect string-scale physics as closely as possible to observables accessible to current or near-future experiments. Our possible best hope to do so is a description of inflation in string theory. The energy scale of inflation can be as high as that of Grand Unification (GUT). If this is the case,
openaire   +6 more sources

On the classical string solutions and string/field theory duality [PDF]

open access: yesJournal of High Energy Physics, 2003
Based on the recently considered classical string configurations, in the framework of the semiclassical limit of the string/gauge theory correspondence, we describe a procedure for obtaining exact classical string solutions in general string theory backgrounds, when the string embedding coordinates depend nonlinearly on the worldsheet spatial ...
Aleksandrova, D., Bozhilov, P.
openaire   +4 more sources

STRING FIELD THEORY

open access: yesPhysics Reports, 1989
Abstract We present an account of string field theory which aims to introduce the reader to the important concepts of the subjects as well as to aid access to the literature. Light cone string theory is briefly reviewed, but the emphasis is on the covariant approach exploiting world sheet BRST invariance to define string field derivations ...
Department of Physics, University of Florida, Gainsville, Fl 32611, USA ( host institution )   +1 more
openaire   +3 more sources

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