Results 71 to 80 of about 18,643 (147)

String Field Theory

After more than 50 years from the Veneziano amplitude, the fundamental formulation of string theory (ST) remains elusive. On the one hand, there is the world-sheet formulation that is truly microscopic but which is only valid for infinitesimal string coupling and is highly background dependent.
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The T-dual symmetries of a bosonic string

European Physical Journal C: Particles and Fields, 2018
We investigate whether the symmetry transformations of a bosonic string are connected by T-duality. We start with a standard closed string theory. We continue with a modified open string theory, modified to preserve the symmetry transformations possessed
Ljubica Davidović, Branislav Sazdović
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Novel string field theory with also negative energy constituents/objects gives Veneziano amplitude

Journal of High Energy Physics, 2018
We have proposed a new type of string field theory. The main point of the present article is to cure some technical troubles: missing two out three terms in Veneziano amplitude. Our novel string field theory, describes a theory with many strings in terms
H.B. Nielsen, M. Ninomiya
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String Field Theory

, 2006
This article is a concise review of covariant string field theory prepared for the Encyclopedia of Mathematical Physics, Elsevier (2006). Referencing follows the publisher's guidelines.
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On democratic string field theories

Journal of High Energy Physics
Abstract We reexamine democratic open string field theories, namely, theories in which string fields are not constrained to a single picture number and picture changing is obtained as a gauge transformation. We describe several possibilities for regular free theories and attempt to construct the lowest order interaction term and ...
Stefano Giaccari, Michael Kroyter
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Deformation of the cubic open string field theory

Physics Letters B, 2017
We study a consistent deformation of the cubic open bosonic string theory in such a way that the non-planar world sheet diagrams of the perturbative string theory are mapped onto their equivalent planar diagrams of the light-cone string field theory with
Taejin Lee
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Field Theory Expansions of String Theory Amplitudes

Physical Review Letters
Motivated by quantum field theory (QFT) considerations, we present new representations of the Euler-Beta function and tree-level string theory amplitudes using a new two-channel, local, crossing symmetric dispersion relation. Unlike standard series representations, the new ones are analytic everywhere except at the poles, sum over poles in all channels,
Arnab Priya Saha, Aninda Sinha
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Topological recursion for hyperbolic string field theory

Journal of High Energy Physics
We derive an analog of Mirzakhani’s recursion relation for hyperbolic string vertices and investigate its implications for closed string field theory.
Atakan Hilmi Fırat, Nico Valdes-Meller
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Open string field theory in lightcone gauge

Journal of High Energy Physics
We study covariant open bosonic string field theory in lightcone gauge. When lightcone gauge is well-defined, we find two results. First, the vertices of the gauge-fixed action consist of Mandelstam diagrams with stubs covering specific portions of the ...
Theodore Erler
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Rolling tachyon and the phase space of open string field theory

Journal of High Energy Physics
We construct the symplectic form on the covariant phase space of the open string field theory on a ZZ-brane in c = 1 string theory, and determine the energy of the rolling tachyon solution, confirming Sen’s earlier proposal based on boundary conformal ...
Minjae Cho, Ben Mazel, Xi Yin
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