The problematic backreaction of SUSY-breaking branes

Blåbäck, Johan; Danielsson, Ulf H.; Junghans, Daniel; Riet, Thomas Van; Wrase, Timm; Zagermann, Marco

doi:10.1007/jhep08(2011)105

Cited by 78 publications

(223 citation statements)

References 52 publications

Supporting

Mentioning

215

Contrasting

Order By: Relevance

“…This again confirms our intuition that the tachyon is a generic feature of the physics of anti-branes in backgrounds with charge dissolved in fluxes, that cannot be removed by playing with the parameters of the supergravity solution. It would be clearly important to confirm this explicitly by extending our analysis to other backgrounds with charge dissolved in fluxes, both with anti-D3 and with other anti-brane charges [10,[44][45][46][47][48].…”

Section: Jhep02(2015)146mentioning

confidence: 88%

Giant tachyons in the landscape

Bena

Graña

Kuperstein

et al. 2015

J. High Energ. Phys.

124

View full text Add to dashboard Cite

Abstract:We study the dynamics of localized and fully backreacting anti-D3 branes at the tip of the Klebanov-Strassler geometry. We use a non-supersymmetric version of the Polchinski-Strassler analysis to compute the potential for anti-D3 branes to polarize into all kinds of five-brane shells in all possible directions. We find that generically there is a direction along which the brane-brane interaction is repulsive, which implies that anti-D3 branes are tachyonic. Hence, even though anti-D3 branes can polarize into five-branes, the solution will most likely be unstable. This indicates that anti-D3 brane uplift may not result in stable de Sitter vacua.

show abstract

Section: Jhep02(2015)146mentioning

confidence: 88%

Giant tachyons in the landscape

Bena

Graña

Kuperstein

et al. 2015

J. High Energ. Phys.

124

View full text Add to dashboard Cite

show abstract

“…The extremal flux background discussed earlier is recovered for the choices λ = 1, e −4A = e 4B = S and e φ = g s S −3/4 . It was shown in [18,33,41] that insisting that the metric has an D6 singularity at r = 0 and asymptotes to the ISD solution, we find that α goes to a non-zero constant near the D6-horizon 4 which we denote α 0 . This implies:…”

Section: Jhep03(2017)141mentioning

confidence: 99%

“…This is most obvious in the description of the backreaction of D6 branes, which is described by ODE's [18,33,38] without having to smear the branes. A second feature-crucial for this paper-is that the annihilation of the H 3 -flux does not proceed via a polarisation into a higher-dimensional object.…”

Section: Why the D6 Is Specialmentioning

confidence: 99%

“…• The 3-form singularity of Dk solutions has a simple interpretation [33] which can be found in the sign of the divergent (but integrable) charge density F 6−k ∧ H 3 . This sign is opposite to the sign of the antibrane charge.…”

Section: Jhep03(2017)141 2 Backreaction Effects and Instabilitiesmentioning

confidence: 99%

“…3 Inserting D6 branes. To describe the same throat geometry but with a stack of D6's at the tip, we use the following general Ansatz preserving the worldvolume symmetries (possibly broken at finite temperature) and the transverse rotational symmetries [33] (in string frame):…”

Section: Jhep03(2017)141mentioning

confidence: 99%

See 2 more Smart Citations

Unstoppable brane-flux decay of D 6 ¯ $$ \overline{\mathrm{D}6} $$ branes

Danielsson

Gautason

Riet

2017

J. High Energ. Phys.

View full text Add to dashboard Cite

We investigate p D6 branes inside a flux throat that carries K × M D6 charges with K the 3-form flux quantum and M the Romans mass. In such a setup brane-flux annihilation can proceed through the nucleation of KK5 branes. We find that within the calculable supergravity regime where g s p is large, the D6 branes annihilate immediately against the fluxes despite the existence of a metastable state at small p/M in the probe approximation. The crucial property that causes this naive conflict with effective field theory is a singularity in the 3-form flux, which we cut off at string scale. Our result explains the absence of regular solutions at finite temperature and suggests there should be a smooth time-dependent solution. We also discuss the qualitative differences between D6 branes and D3 branes, which makes it a priori not obvious to conclude the same instability for D3 branes.

show abstract

De Sitter hunting in a classical landscape

Danielsson¹,

Haque

Koerber

et al. 2011

Fortschritte der Physik

120

245

View full text Add to dashboard Cite

We elaborate on the construction of de Sitter solutions from IIA orientifolds of SU(3)-structure manifolds that solve the 10-dimensional equations of motion at tree-level in the approximation of smeared sources. First we classify geometries that are orbifolds of a group manifold covering space which, upon the proper inclusion of O6 planes, can be described within the framework of N=1 supergravity in 4D. Then we scan systematically for de Sitter solutions, obtained as critical points of an effective 4D potential. Apart from finding many new solutions we emphasize the challenges in constructing explicit classical de Sitter vacua, which have sofar not been met. These challenges are interesting avenues for further research and include finding solutions that are perturbatively stable, satisfy charge and flux quantization, and have genuine localized (versus smeared) orientifold sources. This paper intends to be self-contained and pedagogical, and thus can serve as a guide to the necessary technical tools required for this line of research. In an appendix we explain how to study flux and charge quantization in the presence of a non-trivial H-field using twisted homology.Comment: 50 pages, 3 figure

show abstract

The problematic backreaction of SUSY-breaking branes

Cited by 78 publications

References 52 publications

Giant tachyons in the landscape

Giant tachyons in the landscape

Unstoppable brane-flux decay of D 6 ¯ $$ \overline{\mathrm{D}6} $$ branes

De Sitter hunting in a classical landscape

Contact Info

Product

Resources

About