Loop corrections to superstring equations of motion

Callan, Curtis G.; Lovelace, C.; Nappi, Chiara R.; Yost, S. A.

doi:10.1016/0550-3213(88)90565-2

Cited by 359 publications

(461 citation statements)

References 37 publications

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“…In the absence of non-trivial gauge field on the boundary, the fermionic boundary conditions for the superstring worldsheet are (ψ + ∓ iψ − ) µ = 0 in the directions tangential to the D-brane, and (ψ + ±iψ − ) i = 0 for the transverse directions [1,2,4]. The sign ± is the spin structure, and we leave it undetermined.…”

Section: Supersymmetric Extensionmentioning

confidence: 99%

“…2 If one is not concerned with the zero modes, it is also possible to understand directly the definition (4.1) as a result of the T-duality. Taking the…”

Section: Incorporation Of the Scalar Fieldmentioning

confidence: 99%

“…In the case of constant gauge field strength F µν , the boundary state B (b) (F ) is defined as an eigen state of the linear boundary conditions for open bosonic strings [1,2,4]:…”

Section: Review Of the Generalized Bosonic Boundary Statementioning

confidence: 99%

“…Rrecent developmernt on D-branes in string theories is owing in some part to the analysis of the boundary state [1,2,3,4,5,6]. This ingredient is effective to describe boundary of string worldsheet, especially when it is studied in the ordinary parturbative approach of closed string conformal field theory.…”

Section: Introductionmentioning

confidence: 99%

“…This ingredient is effective to describe boundary of string worldsheet, especially when it is studied in the ordinary parturbative approach of closed string conformal field theory. The boundary state itself has been developped to formulate string loop corrections to the effective equations of motion of string theory in relation to the Fischler-Susskind mechanism [1,2,3]. In most of the studies of the boundary state, only the constant gauge field strength was taken into account as the boundary degree of freedom.…”

Section: Introductionmentioning

confidence: 99%

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Generalized supersymetric boundary state

Hashimoto

2000

J. High Energy Phys.

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Following our previous paper (hep-th/9909027), we generalize a supersymmetric boundary state so that arbitrary configuration of the gauge field coupled to the boundary of the worldsheet is incorpolated. This generalized boundary state is BRST invariant and satisfies the non-linear boundary conditions with non-constant gauge field strength. This boundary state contains divergence which is identical with the loop divergence in a superstring σ model. Hence vanishing of the β function in the superstring σ model corresponds to a well-defined boundary state with no divergence. The coupling of a single closed superstring massless mode with multiple open string massless modes is encoded in the boundary state, and we confirm that derivative correction to the D-brane action in this sector vanishes up to the first non-trivial order O(α ′ ∂ 2 ). Combining T-dualities, we incorpolate also general configurations of the scalar fields on the D-brane, and construct boundary states representing branes stuck to another D-brane, with use of BIon configuration.

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Section: Supersymmetric Extensionmentioning

confidence: 99%

“…2 If one is not concerned with the zero modes, it is also possible to understand directly the definition (4.1) as a result of the T-duality. Taking the…”

Section: Incorporation Of the Scalar Fieldmentioning

confidence: 99%

“…In the case of constant gauge field strength F µν , the boundary state B (b) (F ) is defined as an eigen state of the linear boundary conditions for open bosonic strings [1,2,4]:…”

Section: Review Of the Generalized Bosonic Boundary Statementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Generalized supersymetric boundary state

Hashimoto

2000

J. High Energy Phys.

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Open Strings in Magnetic Background Fields

Körs

2001

Fortschr. Phys.

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We discuss various aspects of internal magnetic background fields in open string theories. Phenomenologically and conceptually interesting properties of such string theory backgrounds, supersymmetry and gauge symmetry breaking, chiral fermion spectra and noncommutativity of the internal compactification manifolds, are treated in a rather generic framework. We then specialize to type I compactifications on tori and toroidal orbifolds with magnetic fields on the internal space. This allows to develop a strategy for constructing type I vacua with attractive low energy field theories which may either be supersymmetric or not and contain chiral spectra and gauge groups close to the Standard Model or some grand unified generalization thereof. The most sophisticated version uses magnetic fields and NSNS B‐fields on orbifold spaces giving rise to a plethora of promising examples for semi‐realistic string compactifications. We finally also present a related class of asymmetric orbifolds of type I which are of little phenomenological interest but still display certain interesting features. The asymmetric rotations which are gauged in these models identify D‐branes with different values for the magnetic field on their world volume, such that the distinction of commutative and noncommutative internal geometries is lost.

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Open Strings in Magnetic Background Fields

Körs

2001

Fortschr. Phys.

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Loop corrections to superstring equations of motion

Cited by 359 publications

References 37 publications

Generalized supersymetric boundary state

Generalized supersymetric boundary state

Open Strings in Magnetic Background Fields

Open Strings in Magnetic Background Fields

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