Results 51 to 60 of about 1,841,622 (348)
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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Cubic Closed String Field Theory on a Double Layer [PDF]
arXiv, 2022 Various studies have attempted to extend the Witten's cubic open string field theory to the cubic closed string field theory, which may describe Einstein gravity in the low energy sector consistently. In the present study we propose a cubic closed string field theory, introducing a double layer to describe the closed string world-sheet as an extension ...
arxiv
Recent Developments in D=2 String Field Theory [PDF]
Int.J.Mod.Phys. A9 (1994) 3103-3142, 1994 In this review article, we review the recent developments in constructing string field theories that have been proposed, all of which correctly reproduce the correlation functions of two-dimensional string theory. These include: (a) free fermion field theory (b) collective string field theory (c) temporal gauge string field theory (d) non-polynomial ...
arxiv +1 more source
Strings and Unified Field Theories [PDF]
Theoretical Physics, 2017 It is argued that string theory predicts unified field theory rather than general relativity coupled to matter fields. In unified field theory all the objects are geometrical, for strings the Kalb-Ramond matter field is identical to the asymmetric part of the metric except that the fields contribute to different sides of the field equations.
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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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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
doaj +1 more source
Closed String Amplitudes from Gauge Fixed String Field Theory [PDF]
Phys.Rev. D67 (2003) 126004, 2002 Closed string diagrams are derived from cubic open string field theory using a gauge fixed kinetic operator. The basic idea is to use a string propagator that does not generate a boundary to the world sheet. Using this propagator and the closed string vertex, the moduli space of closed string surfaces is covered, so closed string scattering amplitudes ...
arxiv +1 more source
INTERPOLATING STRING FIELD THEORIES [PDF]
Modern Physics Letters A, 1992 A minimal area problem imposing different length conditions on open and closed curves is shown to define a one-parameter family of covariant open-closed quantum string field theories. These interpolate from a recently proposed factorizable open-closed theory up to an extended version of Witten’s open string field theory capable of incorporating on ...
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Half-String Approach to Closed String Field Theory [PDF]
Nucl.Phys. B397 (1993) 260-282, 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 matrices, with operator insertions that reparametrise the half-strings.
arxiv +1 more source
Heterotic String Field Theory [PDF]
Journal of High Energy Physics, 2004 We construct the Neveu-Schwarz sector of heterotic string field theory using the large Hilbert space of the superghosts and the multi-string products of bosonic closed string field theory. No picture-changing operators are required as in Wess-Zumino-Witten-like open superstring field theory.
Barton Zwiebach, Yuji Okawa
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