English

Lifshitz metric with hyperscaling violation from NS5-Dp states in string theory

High Energy Physics - Theory 2015-06-11 v3

Abstract

In our previous papers we have shown how Lifshitz-like space-time (space-time having a Lifshitz scaling along with a hyperscaling violation) can arise by taking near horizon limits of certain intersecting solutions (F-string with Dpp-branes and also with two D-branes) of string theory. In this paper we construct intersecting bound state solutions in the form of NS5-Dpp-branes (with 1p61\leq p \leq 6) of type II string theories. These are 1/4 BPS and threshold bound states unlike the known NS5-Dpp bound states which are 1/2 BPS and non-threshold. We show that the near horizon limits of these solutions also lead to Lifshitz-like space-time with the dynamical scaling exponent z=0z=0 and the hyperscaling violation exponent θ=9p\theta=9-p. The spatial dimension of the boundary theory is d=7pd=7-p. The dilatons in these theories are not constant in general (except for p=5p=5) and therefore produce RG flows. So, we also consider the strong coupling phases of these theories and find that these phases also have similar Lifshitz-like structures, except for p=2p=2, where it has an AdS3_3 structure.

Keywords

Cite

@article{arxiv.1209.1049,
  title  = {Lifshitz metric with hyperscaling violation from NS5-Dp states in string theory},
  author = {Parijat Dey and Shibaji Roy},
  journal= {arXiv preprint arXiv:1209.1049},
  year   = {2015}
}

Comments

12 pages, no figure; v2: Added references; v3: more clarifications added, version to appear in Phys. Lett. B