# Singularities and closed time-like curves in type IIB 1/2 BPS geometries

@article{Milanesi2005SingularitiesAC, title={Singularities and closed time-like curves in type IIB 1/2 BPS geometries}, author={Giuseppe Milanesi and Martin O’Loughlin}, journal={Journal of High Energy Physics}, year={2005}, volume={2005}, pages={008-008} }

We study in detail the moduli space of solutions discovered in LLM relaxing the constraint that guarantees the absence of singularities. The solutions fall into three classes, non-singular, null-singular and time machines with a time-like naked singularity. We study the general features of these metrics and prove that there are actually just two generic classes of space-times — those with null singularities are in the same class as the non-singular metrics. AdS/CFT seems to provide a dual…

## 34 Citations

1/8 BPS states in AdS/CFT

- Physics
- 2007

We study a class of exact supersymmetric solutions of type IIB Supergravity. They have an SO(4) × SU(2) × U(1) isometry and preserve generically 4 of the 32 supersymmetries of the theory.…

7 1 / 8 BPS States in AdS / CFT

- 2008

We study a class of exact supersymmetric solutions of type IIB Supergravity. They have an SO(4)×SU(2)×U(1) isometry and preserve generically 4 of the 32 supersymmetries of the theory. Asymptotically…

On classification of the bubbling geometries

- Physics
- 2006

In this paper we classify the ten dimensional half BPS solutions of the type IIB supergravity which have SO(4) × SO(4) × U(1) isometry found by Lin-Lunin-Maldacena (LLM). Our classification is based…

All 1/2 BPS solutions of IIB supergravity with SO (4) × SO (4) isometry

- Physics
- 2007

Abstract In hep-th/0409174 , Lin, Lunin and Maldacena constructed a set of regular 1/2 BPS geometries in IIB theory. These remarkable ‘bubbling AdS’ geometries have a natural interpretation as duals…

Half-BPS geometries and thermodynamics of free fermions

- Physics
- 2007

Solutions of type IIB supergravity which preserve half of the supersymmetries have a dual description in terms of free fermions, as elucidated by the ``bubbling AdS" construction of Lin, Lunin and…

K.S. Narain a and Martin O’Loughlin a

- 2006

We study a class of exact supersymmetric solutions of type IIB Supergravity. They have an SO(4)×SU(2)×U(1) isometry and preserve generically 4 of the 32 supersymmetries of the theory. Asymptotically…

Bubbling AdS and vacuum string field theory

- Physics
- 2006

We show that a family of 1/2-BPS states of N = 4 SYM is in correspondence with a family of classical solutions of VSFT with a B-field playing the role of the inverse Planck constant. We show this…

Geometries and Thermodynamics of Free Fermions

- 2005

Solutions of type IIB supergravity which preserve half of the supersymmetries have a dual description in terms of free fermions, as elucidated by the “bubbling AdS” construction of Lin, Lunin and…

Semi-classical probe strings on giant gravitons backgrounds

- Physics
- 2005

In the first part of this paper we study two 2 symmetries of the LLM metric, both of which exchange black and white regions. One of them which can be interpreted as the particle-hole symmetry is the…

Minisuperspace quantization of "Bubbling AdS" and free fermion droplets

- Physics
- 2005

We quantize the space of 1/2 BPS configurations of type-IIB SUGRA found by Lin, Lunin and Maldacena (hep-th/0409174), directly in supergravity. We use the Crnkovic-Witten-Zuckerman covariant…

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