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Title:

The heterotic string at high temperature (or with strong supersymmetry breaking)

Description:

Perturbative heterotic string theory develops a single complex tachyonic mode beyond the Hagedorn temperature. We calculate the quartic effective potential for this tachyonic mode at the critical temperature. Equivalently, we determine the quartic effective potential for strong supersymmetric breaking via anti-perdiodic boundary conditions for f...

Perturbative heterotic string theory develops a single complex tachyonic mode beyond the Hagedorn temperature. We calculate the quartic effective potential for this tachyonic mode at the critical temperature. Equivalently, we determine the quartic effective potential for strong supersymmetric breaking via anti-perdiodic boundary conditions for fermions on a small circle. We give many details of the heterotic tachyon scattering amplitudes, including a unitarity check to fix all normalization constants. We discuss difficulties in obtaining an effective action valid at all radii. We argue that in certain variables, the quartic term in the potential is radius independent. Speculations on the properties of a new strongly curved phase that could occur after tachyon condensation are offered. Minimize

Publisher:

Springer-Verlag

Year of Publication:

2011-10-01

Source:

Journal of High Energy Physics, 2011-10-01, Volume 2011, pp 1-23

Journal of High Energy Physics, 2011-10-01, Volume 2011, pp 1-23 Minimize

Language:

En

Subjects:

Superstrings and Heterotic Strings ; Tachyon Condensation

Superstrings and Heterotic Strings ; Tachyon Condensation Minimize

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Title:

The algebra of diffeomorphisms from the world sheet

Description:

The quantum theory of a massless spin two particle is strongly constrained by diffeomorphism invariance, which is in turn implied by unitarity. We explicitly exhibit the space-time diffeomorphism algebra of string theory, realizing it in terms of world sheet vertex operators. Viewing diffeomorphisms as field redefinitions in the two-dimensional ...

The quantum theory of a massless spin two particle is strongly constrained by diffeomorphism invariance, which is in turn implied by unitarity. We explicitly exhibit the space-time diffeomorphism algebra of string theory, realizing it in terms of world sheet vertex operators. Viewing diffeomorphisms as field redefinitions in the two-dimensional conformal field theory renders the calculation of their algebra straightforward. Next, we generalize the analysis to combinations of space-time anti-symmetric tensor gauge transformations and diffeomorphisms. We also point out a left-right split of the algebra combined with a twist that reproduces the C-bracket of double field theory. We further compare our derivation to an analysis in terms of marginal deformations as well as vertex operator algebras. Minimize

Publisher:

Springer Berlin Heidelberg

Year of Publication:

2014-09-01

Source:

Journal of High Energy Physics, 2014-09-01, Volume 2014, pp 1-18

Journal of High Energy Physics, 2014-09-01, Volume 2014, pp 1-18 Minimize

Language:

En

Subjects:

Bosonic Strings ; Conformal Field Models in String Theory ; Space-Time Symmetries ; BRST Symmetry

Bosonic Strings ; Conformal Field Models in String Theory ; Space-Time Symmetries ; BRST Symmetry Minimize

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Title:

hep-th/yymmddd Massive Tensor Multiplets in N = 1 Supersymmetry 1

Description:

We derive the action for a massive tensor multiplet coupled to chiral and vector multiplets as it can appear in orientifold compactifications of type IIB string theory. We compute the potential of the theory and show its consistency with the corresponding Kaluza-Klein reduction of N = 1 orientifold compactifications. The potential contains an ex...

We derive the action for a massive tensor multiplet coupled to chiral and vector multiplets as it can appear in orientifold compactifications of type IIB string theory. We compute the potential of the theory and show its consistency with the corresponding Kaluza-Klein reduction of N = 1 orientifold compactifications. The potential contains an explicit mass term for the scalar in the tensor multiplet which does not arise from eliminating an auxiliary field. A dual action with an additional massive vector multiplet is derived at the level of superfields. Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2013-01-30

Source:

http://arxiv.org/pdf/hep-th/0410149v1.pdf

http://arxiv.org/pdf/hep-th/0410149v1.pdf Minimize

Document Type:

text

Language:

en

Rights:

Metadata may be used without restrictions as long as the oai identifier remains attached to it.

Metadata may be used without restrictions as long as the oai identifier remains attached to it. Minimize

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Title:

Waldemar.Schulgin, Jan.Troost @ lpt.ens.fr

Description:

We provide the backreaction of the T-fold doubly T-dual to a background with NSNS three-form flux on a three-torus. We extend the backreacted T-fold to include cases with a flux localized in one out of three directions. We analyze the resulting monodromy domain walls and vortices. In these backgrounds, we give an analysis of the action of T-dual...

We provide the backreaction of the T-fold doubly T-dual to a background with NSNS three-form flux on a three-torus. We extend the backreacted T-fold to include cases with a flux localized in one out of three directions. We analyze the resulting monodromy domain walls and vortices. In these backgrounds, we give an analysis of the action of T-duality on observables like charges and Wilson surfaces. We analyze arguments for the existence of regions in the configuration space of second quantized string theory that cannot be reduced to geometry. Finally, by allowing for spacedependent moduli, we find a supergravity solution which is a T-fold with hyperbolic monodromies. 1 Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2013-08-04

Source:

http://arxiv.org/pdf/0808.1345v2.pdf

http://arxiv.org/pdf/0808.1345v2.pdf Minimize

Document Type:

text

Language:

en

Rights:

Metadata may be used without restrictions as long as the oai identifier remains attached to it.

Metadata may be used without restrictions as long as the oai identifier remains attached to it. Minimize

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Author manuscript, published in "The Proceedings of the International Conference on Strings and Branes: The Present Paradigm for Gauge Interactions and Cosmology (Cargèse School on String Theory) France (2006)" Zero mode counting in the presence of backgr

Description:

To obtain a superpotential contribution from a D3-instanton in type IIB string theory, two fermionic zero modes should be present on the worldvolume of a D3-brane wrapping a four-cycle. We discuss this criterium in the presence of fluxes for different configurations of O-planes and Euclidean D3-branes. 1.

To obtain a superpotential contribution from a D3-instanton in type IIB string theory, two fermionic zero modes should be present on the worldvolume of a D3-brane wrapping a four-cycle. We discuss this criterium in the presence of fluxes for different configurations of O-planes and Euclidean D3-branes. 1. Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2013-10-30

Source:

http://hal.archives-ouvertes.fr/docs/00/25/00/66/PDF/schulgin.pdf

http://hal.archives-ouvertes.fr/docs/00/25/00/66/PDF/schulgin.pdf Minimize

Document Type:

text

Language:

en

Rights:

Metadata may be used without restrictions as long as the oai identifier remains attached to it.

Metadata may be used without restrictions as long as the oai identifier remains attached to it. Minimize

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Title:

and Non-geometric regions in configuration space

Author:

Description:

We provide the backreaction of the T-fold doubly T-dual to a background with NSNS three-form flux on a three-torus. We extend the backreacted T-fold to include cases with a flux localized in one out of three directions. We analyze the resulting monodromy domain walls and vortices. In these backgrounds, we give an analysis of the action of T-dual...

We provide the backreaction of the T-fold doubly T-dual to a background with NSNS three-form flux on a three-torus. We extend the backreacted T-fold to include cases with a flux localized in one out of three directions. We analyze the resulting monodromy domain walls and vortices. In these backgrounds, we give an analysis of the action of T-duality on observables like charges and Wilson surfaces. We analyze arguments for the existence of regions in the configuration space of second quantized string theory that cannot be reduced to geometry. Finally, by allowing for spacedependent moduli, we find a supergravity solution which is a T-fold with hyperbolic monodromies. 1 Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2013-08-04

Source:

http://arxiv.org/pdf/0808.1345v1.pdf

http://arxiv.org/pdf/0808.1345v1.pdf Minimize

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text

Language:

en

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Title:

Spin chain for the deformed ABJM theory

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In this short note we begin the analysis of deformed integrable Chern-Simons theories. We construct the two loop dilatation operator for the scalar sector of the ABJM theory with k1 ̸ = −k2 and we compute the anomalous dimension of some operators. 1

In this short note we begin the analysis of deformed integrable Chern-Simons theories. We construct the two loop dilatation operator for the scalar sector of the ABJM theory with k1 ̸ = −k2 and we compute the anomalous dimension of some operators. 1 Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2012-11-27

Source:

http://arxiv.org/pdf/0906.3301v2.pdf

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text

Language:

en

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Title:

hep-th/0509082 Fermion Zero Modes in the Presence of Fluxes

Author:

Description:

We study the effect of background fluxes of general Hodge type on the supersymmetry conditions and on the fermionic zero modes on the world-volume of a Euclidean M5/D3–brane in M-theory/type IIB string theory. Using the naive susy variation of the modulino fields to determine the number of zero modes in the presence of a flux of general Hodge ty...

We study the effect of background fluxes of general Hodge type on the supersymmetry conditions and on the fermionic zero modes on the world-volume of a Euclidean M5/D3–brane in M-theory/type IIB string theory. Using the naive susy variation of the modulino fields to determine the number of zero modes in the presence of a flux of general Hodge type, an inconsistency appears. This inconsistency is resolved by a modification of the supersymmetry variation of the modulinos, which captures the back-reaction of the non-perturbative effects on the background flux and the geometry. 1 Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2013-01-28

Source:

http://arxiv.org/pdf/hep-th/0509082v3.pdf

http://arxiv.org/pdf/hep-th/0509082v3.pdf Minimize

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text

Language:

en

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Title:

hep-th/0509082 Fermion Zero Modes in the Presence of Fluxes

Author:

Description:

We study the effect of background fluxes of general Hodge type on the supersymmetry conditions and on the fermionic zero modes on the world-volume of a Euclidean M5/D3–brane in M-theory/type IIB string theory. Using the naive susy variation of the modulino fields to determine the number of zero modes in the presence of a flux of general Hodge ty...

We study the effect of background fluxes of general Hodge type on the supersymmetry conditions and on the fermionic zero modes on the world-volume of a Euclidean M5/D3–brane in M-theory/type IIB string theory. Using the naive susy variation of the modulino fields to determine the number of zero modes in the presence of a flux of general Hodge type, an inconsistency appears. This inconsistency is resolved by a modification of the supersymmetry variation of the modulinos, which captures the back-reaction of the non-perturbative effects on the background flux and the geometry. 1 Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2013-01-28

Source:

http://arxiv.org/pdf/hep-th/0509082v1.pdf

http://arxiv.org/pdf/hep-th/0509082v1.pdf Minimize

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text

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en

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Title:

hep-th/0509082 Fermion Zero Modes in the Presence of Fluxes

Author:

Description:

We study the effect of background fluxes of general Hodge type on the supersymmetry conditions and on the fermionic zero modes on the world-volume of a Euclidean M5/D3–brane in M-theory/type IIB string theory. Using the naive susy variation of the modulino fields to determine the number of zero modes in the presence of a flux of general Hodge ty...

We study the effect of background fluxes of general Hodge type on the supersymmetry conditions and on the fermionic zero modes on the world-volume of a Euclidean M5/D3–brane in M-theory/type IIB string theory. Using the naive susy variation of the modulino fields to determine the number of zero modes in the presence of a flux of general Hodge type, an inconsistency appears. This inconsistency is resolved by a modification of the supersymmetry variation of the modulinos, which captures the back-reaction of the non-perturbative effects on the background flux and the geometry. 1 Minimize

Contributors:

The Pennsylvania State University CiteSeerX Archives

Year of Publication:

2013-01-28

Source:

http://arxiv.org/pdf/hep-th/0509082v2.pdf

http://arxiv.org/pdf/hep-th/0509082v2.pdf Minimize

Document Type:

text

Language:

en

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