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String field theory solution for any open string background. Part II
Generalizing previous work, we give a new analytic solution in Witten’s open bosonic string field theory which can describe any open string background. The central idea is to use Riemann surface degenerations as a mechanism for taming OPE singularities ...
Theodore Erler, Carlo Maccaferri
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Light strings and strong coupling in F-theory
We consider 4d N $$ \mathcal{N} $$ = 1 theories arising from F-theory compactifications on elliptically-fibered Calabi-Yau four-folds and investigate the non-perturbative structure of their scalar field space beyond the large volume/large complex ...
Max Wiesner
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Gauge theory of the string geodesic field [PDF]
38 pages, PHYZZX, UTS-DFT-92 ...
ANTONIO AURILIA+2 more
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Exact Solutions in SFT and Marginal Deformation in BCFT
In this note we will study solution of open bosonic string field theory based on action of operators from chiral algebra of boundary conformal field theory on identity element of string field theory star algebra. We will demonstrate that the string field
A. Kling+51 more
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Dual D-brane actions in nonrelativistic string theory
We study worldvolume actions for D-branes coupled to the worldvolume U(1) gauge field and Ramond-Ramond (RR) potentials in nonrelativistic string theory.
Stephen Ebert, Hao-Yu Sun, Ziqi Yan
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NONCOMMUTATIVE FIELD THEORIES AND (SUPER)STRING FIELD THEORIES [PDF]
In this lecture notes we explain and discuss some ideas concerning noncommutative geometry in general, as well as noncommutative field theories and string field theories. We consider noncommutative quantum field theories emphasizing an issue of their renormalizability and the UV/IR mixing. Sen's conjectures on open string tachyon condensation and their
P. B. Medvedev+4 more
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WZW-like Action for Heterotic String Field Theory
We complete the construction of the Neveu-Schwarz sector of heterotic string field theory begun in hep-th/0406212 by giving a closed-form expression for the action and gauge transformations.
A. Adams+17 more
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On tensionless string field theory in AdS3
We report on progress in formulating a field theory of tensionless strings in AdS3, starting from the dual large-N symmetric orbifold CFT. We propose a set of field equations which are gauge invariant under the higher spin algebra of the theory, the ...
Joris Raeymaekers
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KLT factorization of nonrelativistic string amplitudes
We continue our study of the Kawai-Lewellen-Tye (KLT) factorization of winding string amplitudes in [1]. In a toroidal compactification, amplitudes for winding closed string states factorize into products of amplitudes for open strings ending on an array
Ziqi Yan, Matthew Yu
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On democratic string field theories
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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