Results 31 to 40 of about 469,891 (347)
String field theory as world-sheet UV regulator
Journal of High Energy Physics, 2019 Even at tree level, the first quantized string theory suffers from apparent short distance singularities associated with collision of vertex operators that prevent us from straightforward numerical computation of various quantities.
Ashoke Sen
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Asymptotic scalar field cosmology in string theory
Journal 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
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Physics 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
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Background independence of closed superstring field theory
Journal 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
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Nonrelativistic string theory and T-duality
Journal 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
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The closed string field theory action vanishes
Journal of High Energy Physics, 2022 Using the dilaton theorem, we show that the classical action of closed string field theory vanishes on-shell.
Theodore Erler
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Half-String Approach to Closed String Field Theory [PDF]
, 1993 In this letter we present an operator formalism for Closed String Field Theory based on closed half-strings. Our results indicate that the restricted polyhedra of the classical non-polynomial string field theory, can be represented as traces of infinite ...
A. Abdurrahman +20 more
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Local string field theory [PDF]
XIVth 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.
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Twist Field as Three String Interaction Vertex in Light Cone String Field Theory
, 2006 It has been suggested that matrix string theory and light-cone string field theory are closely related. In this paper, we investigate the relation between the twist field, which represents string interactions in matrix string theory, and the three-string
Asakawa +27 more
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String cosmology — Large-field inflation in string theory [PDF]
International 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,
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