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733
Gauge Invariance and Tachyon Condensation in Open String Field Theory,” hepth/0105156
"... The gauge invariance of open string field theory is considered from the point of view of level truncation, and applications to the tachyon condensation problem are discussed. We show that the region of validity of FeynmanSiegel gauge can be accurately determined using the level truncation method. W ..."
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Cited by 20 (3 self)
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The gauge invariance of open string field theory is considered from the point of view of level truncation, and applications to the tachyon condensation problem are discussed. We show that the region of validity of FeynmanSiegel gauge can be accurately determined using the level truncation method
Proof of vanishing cohomology at the tachyon vacuum
, 2006
"... We prove Sen’s third conjecture that there are no onshell perturbative excitations of the tachyon vacuum in open bosonic string field theory. The proof relies on the existence of a special state A, which, when acted on by the BRST operator at the tachyon vacuum, gives the identity. While this state ..."
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Cited by 88 (7 self)
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this state was found numerically in FeynmanSiegel gauge, here we give a simple analytic expression.
YangMills Gauge Conditions from Witten’s Open String Field Theory
"... We construct the ZinnJustinBatalinVilkovisky action for tachyons and gauge bosons from Witten’s 3string vertex of the bosonic open string without gauge fixing. Through canonical transformations, we find the offshell, local, gaugecovariant action up to 3point terms, satisfying the usual field ..."
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Cited by 7 (0 self)
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theory gauge transformations. Perturbatively, it can be extended to higherpoint terms. It also gives a new gauge condition in field theory which corresponds to the FeynmanSiegel gauge on the worldsheet.
hepth/0107046 Wilson Lines and Classical Solutions in Cubic Open String Field Theory
, 2001
"... We construct exact classical solutions in cubic open string field theory. By the redefinition of the string field, we find that the solutions correspond to finite deformations of the Wilson lines. The solutions are welldefined in level truncation scheme, and they have no branch cut singularity of m ..."
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of marginal parameters which was found in the analysis using level truncation approximation in FeynmanSiegel gauge. We also discuss marginal tachyon lump solutions at critical radius.
and
, 2001
"... The gauge invariance of cubic open superstring field theory is considered in a framework of level truncation, and applications to the tachyon condensation problem are discussed. As it is known, in the bosonic case the FeynmanSiegel gauge is not universal within the level truncation method. We explo ..."
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The gauge invariance of cubic open superstring field theory is considered in a framework of level truncation, and applications to the tachyon condensation problem are discussed. As it is known, in the bosonic case the FeynmanSiegel gauge is not universal within the level truncation method. We
and
, 2001
"... The gauge invariance of cubic open superstring field theory is considered in a framework of level truncation, and applications to the tachyon condensation problem are discussed. As it is known, in the bosonic case the FeynmanSiegel gauge is not universal within the level truncation method. We explo ..."
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The gauge invariance of cubic open superstring field theory is considered in a framework of level truncation, and applications to the tachyon condensation problem are discussed. As it is known, in the bosonic case the FeynmanSiegel gauge is not universal within the level truncation method. We
Level truncated tachyon potential in various gauges
 JHEP
, 2007
"... New gauge fixing condition with single gauge parameter proposed by the authors is applied to the level truncated analysis of tachyon condensation in cubic open string field theory. It is found that the only one real nontrivial extremum persists to appear in the welldefined region of the gauge para ..."
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Cited by 6 (1 self)
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parameter, while the other solutions are turned out to be gaugeartifacts. Contrary to the previously known pathology in the FeynmanSiegel gauge, tachyon potential is remarkably smooth Stimulated by the Sen’s conjecture [1], string field theoretical study of tachyon condensation has been carried out
Renormalization Group Flow in BRST Invariant Open String σModel
, 2008
"... The renormalization group flow in the theory space of a BRST invariant string σmodel is investigated. For the open bosonic string the nonperturbative offshell effective action and its gauge symmetry properties are determined from βfunctions defined by the local Weyl anomaly. The interactions are ..."
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are shown to explicitly break the free theory BRST invariance generating new nonlinear gauge symmetries of the type present in Witten’s string field theory. In the FeynmanSiegel gauge the σmodel is shown to generate Witten’s structure of vertex couplings. 1
New Covariant Gauges in String Field Theory,” preprint UTKomaba/0612
"... A singleparameter family of covariant gauge fixing conditions in bosonic string field theory is proposed. It is a natural string field counterpart of the covariant gauge in the conventional gauge theory, which includes the Landau gauge as well as the Feynman (Siegel) gauge as special cases. The act ..."
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Cited by 15 (4 self)
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A singleparameter family of covariant gauge fixing conditions in bosonic string field theory is proposed. It is a natural string field counterpart of the covariant gauge in the conventional gauge theory, which includes the Landau gauge as well as the Feynman (Siegel) gauge as special cases
KodairaSpencer theory of gravity and exact results for quantum string amplitudes
 Commun. Math. Phys
, 1994
"... We develop techniques to compute higher loop string amplitudes for twisted N = 2 theories with ĉ = 3 (i.e. the critical case). An important ingredient is the discovery of an anomaly at every genus in decoupling of BRST trivial states, captured to all orders by a master anomaly equation. In a particu ..."
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Cited by 545 (60 self)
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We develop techniques to compute higher loop string amplitudes for twisted N = 2 theories with ĉ = 3 (i.e. the critical case). An important ingredient is the discovery of an anomaly at every genus in decoupling of BRST trivial states, captured to all orders by a master anomaly equation. In a particular realization of the N = 2 theories, the resulting string field theory is equivalent to a topological theory in six dimensions, the Kodaira– Spencer theory, which may be viewed as the closed string analog of the Chern–Simon theory. Using the mirror map this leads to computation of the ‘number ’ of holomorphic curves of higher genus curves in Calabi–Yau manifolds. It is shown that topological amplitudes can also be reinterpreted as computing corrections to superpotential terms appearing in the effective 4d theory resulting from compactification of standard 10d superstrings on the corresponding N = 2 theory. Relations with c = 1 strings are also pointed out.
Results 1  10
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733