Results 61 to 70 of about 18,559 (167)

STRING FIELD THEORY FROM QUANTUM GRAVITY [PDF]

open access: yesReviews in Mathematical Physics, 2013
Recent work on neutrino oscillations suggests that the three generations of fermions in the standard model are related by representations of the finite group A(4), the group of symmetries of the tetrahedron. Motivated by this, we explore models which extend the EPRL model for quantum gravity by coupling it to a bosonic quantum field of representations
openaire   +3 more sources

Topological defects in open string field theory

open access: yesJournal 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   +3 more
doaj   +1 more source

Normalization of ZZ instanton amplitudes in minimal string theory

open access: yesJournal of High Energy Physics, 2022
We use insights from string field theory to analyze and cure the divergences in the cylinder diagram in minimal string theory with both boundaries lying on a ZZ brane.
Dan Stefan Eniceicu   +3 more
doaj   +1 more source

String field theory

open access: yesNuclear Physics B, 1986
A gauge invariant field theory of the bosonic string is formulated following Siegel, Banks and Peskin, and Feigin and Fuks. The free field action is constructed from the Virasoro operators assuming only locality. The propagator is very regular at short distance.
openaire   +1 more source

Free field theory as a string theory? [PDF]

open access: yesComptes Rendus. Physique, 2004
An approach to systematically implement open-closed string duality for free large N gauge theories is summarised. We show how the relevant closed string moduli space emerges from a reorganisation of the Feynman diagrams contributing to free field correlators. We also indicate why the resulting integrand on moduli space has the right features to be that
openaire   +2 more sources

Fundamental string solutions in open string field theories [PDF]

open access: yesPhysical Review D, 2006
In Witten's open cubic bosonic string field theory and Berkovits' superstring field theory we investigate solutions of the equations of motion with appropriate source terms, which correspond to Callan-Maldacena solution in Born-Infeld theory representing fundamental strings ending on the D-branes.
openaire   +2 more sources

Wilsonian effective potentials and closed string field theory

open access: yesJournal of High Energy Physics
We investigate Wilsonian effective field theory as a model for the construction of the tachyon potential and nonperturbative vacua in closed string field theory.
Theodore Erler, Atakan Hilmi Fırat
doaj   +1 more source

Open string stub as an auxiliary string field

open access: yesSciPost Physics
Witten's open string field theory with a generalized version of stubs is reformulated as a cubic string field theory using an auxiliary string field. The gauge symmetries and equations of motion as well as the associative algebra of the resulting theory ...
Harold Erbin, Atakan Hilmi Firat
doaj   +1 more source

Adding stubs to quantum string field theories

open access: yesJournal of High Energy Physics
Generalizing recent work by Schnabl-Stettinger and Erbin-Fırat, we outline a universal algebraic procedure for ‘adding stubs’ to string field theories obeying the BV quantum master equation.
C. Maccaferri   +3 more
doaj   +1 more source

The bosonic string on string-size tori from double field theory

open access: yesJournal of High Energy Physics, 2017
We construct the effective action for toroidal compactifications of bosonic string theory from generalized Scherk-Schwarz reductions of double field theory.
Yago Cagnacci   +3 more
doaj   +1 more source

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