Results 1 to 10 of about 45,041 (216)

Topological defects in open string field theory

Journal of High Energy Physics, 2018
We show how conformal field theory topological defects can relate solutions of open string field theory for different boundary conditions. To this end we generalize the results of Graham and Watts to include the action of defects on boundary condition ...
Toshiko Kojita, Carlo Maccaferri, Toru Masuda, Martin Schnabl   +3 more
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On the dynamics of protected ramond ground states in the D1-D5 CFT

Journal of High Energy Physics, 2021
We examine the behavior of the Ramond ground states in the D1-D5 CFT after a deformation of the free-orbifold sigma model on target space ( T 4 $$ {\mathbbm{T}}^4 $$ ) N /S N by a marginal interaction operator.
A. A. Lima, G. M. Sotkov, M. Stanishkov
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Dynamics of R-neutral Ramond fields in the D1-D5 SCFT

Journal of High Energy Physics, 2021
We describe the effect of the marginal deformation of the N $$ \mathcal{N} $$ = (4, 4) super-conformal (T 4) N /S N orbifold theory on a doublet of R-neutral twisted Ramond fields, in the large-N approximation. Our analysis of their dynamics explores the
A. A. Lima, G. M. Sotkov, M. Stanishkov
doaj   +1 more source

Closed string deformations in open string field theory. Part I. Bosonic string

Journal of High Energy Physics, 2021
This is the first of a series of three papers on open string field theories based on Witten star product deformed with a gauge invariant open/closed coupling.
Carlo Maccaferri, Jakub Vošmera
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Boundary states in the SU(2) k WZW model from open string field theory

Journal of High Energy Physics, 2023
We analyze boundary states in the SU(2) k WZW model using open string field theory in the level truncation approximation. We develop algorithms that allow effective calculation of the action in this model and we search for classical solutions of the ...
Matěj Kudrna
doaj   +1 more source

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
doaj   +1 more source

The ZZ annulus one-point function in non-critical string theory: A string field theory analysis

Journal of High Energy Physics, 2022
We compute the ZZ annulus one-point function of the cosmological constant operator in non-critical string theory, regulating divergences from the boundaries of moduli space using string field theory.
Dan Stefan Eniceicu, Raghu Mahajan, Pronobesh Maity, Chitraang Murdia, Ashoke Sen   +4 more
doaj   +1 more source

Exact solutions of closed string theory [PDF]

, 1995
We review explicitly known exact $D=4$ solutions with Minkowski signature in closed bosonic string theory. Classical string solutions with space-time interpretation are represented by conformal sigma models.
A A Tseytlin, Bardakci K, Bars I, Bars I, Behrndt K, Brinkmann H W, Callan C, Callan C, De Alwis S, de Boer J, de Vega H, de Vega H, Duff M, Duff M J, Duval C, Ferrara S, Figueroa-O'Farrill J M, Forgács P, Forgács P, Fradkin E S, Fradkin E S, Friedan D, Friedan D, Galtsov D, Gauntlett J, Gibbons G W, Gürses M, Halpern M B, Halpern M B, Horowitz G, Horowitz G, Horowitz G, Horowitz G T, Howe P, Israel W, Johnson C, Kallosh R, Kehagias A, Khuri R, Kiritsis E, Kiritsis E, Kiritsis E, Kounnas C, Kounnas C, Lovelace C, Mohammedi N, Morozov A Yu, Mukhi S, Nesterenko V V, Park J, Penrose R, Peterman A, Peterman A, Polyakov A, Polyakov A M, Russo J G, Russo J G, Russo J G, Sfetsos K, Sfetsos K, Townsend P K, Tseytlin A A, Tseytlin A A, Witten E, Yoneya T, Zamolodchikov A B   +65 more
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Moonshine, superconformal symmetry, and quantum error correction

Journal of High Energy Physics, 2020
Special conformal field theories can have symmetry groups which are interesting sporadic finite simple groups. Famous examples include the Monster symmetry group of a c = 24 two-dimensional conformal field theory (CFT) constructed by Frenkel, Lepowsky ...
Jeffrey A. Harvey, Gregory W. Moore
doaj   +1 more source

Affine Connections and Topological Conformal Field Theories on Higher-Genus Riemann Surfaces. II: Bosonic Strings and Related Models [PDF]

Progress of Theoretical Physics, 1993
The topological conformal algebra for the models of bosonic string type is considered on an arbitrary higher-genus Riemann surface M. Associated with the U(1) anomaly the affine connection is automatically introduced into the algebra. The affine connection always appears in the form of covariant derivatives, so that it guarantees coordinate ...
openaire   +1 more source