Results 31 to 40 of about 465,915 (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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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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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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Observables of String Field Theory [PDF]
Journal of High Energy Physics, 2002 We study gauge invariant operators of open string field theory and find a precise correspondence with on-shell closed strings. We provide a detailed proof of the gauge invariance of the operators and a heuristic interpretation of their correlation functions in terms of on-shell scattering amplitudes of closed strings.
N. Itzhaki, Akikazu Hashimoto
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String Webs from Field Theory [PDF]
, 2001 The spectrum of stable electrically and magnetically charged supersymmetric particles can change discontinuously as one changes the vacuum on the Coulomb branch of gauge theories with extended supersymmetry in four dimensions.
Argyres, Philip C., Narayan, K.
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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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Closed string deformations in open string field theory. Part II. Superstring
Journal 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
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Lattice String Field Theory [PDF]
Proceedings of The XXVIII International Symposium on Lattice Field Theory — PoS(Lattice 2010), 2011 7 pages, 2 figures. To appear in the Proceedings of the XXVIIIth International Symposium on Lattice Field Theory (Lattice 2010), Villasimius, Italy, June 14-19 ...
Francis Bursa, Michael Kroyter
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Generation flow in field theory and strings [PDF]
Journal of High Energy Physics, 2021 AbstractNontrivial strong dynamics often leads to the appearance of chiral composites. In phenomenological applications, these can either play the role of Standard Model particles or lift chiral exotics by partnering with them in mass terms. As a consequence, the RG flow may change the effective number of chiral generations, a phenomenon we call ...
Saúl Ramos-Sánchez +4 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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