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- Thomas Hertog, Kengo Maeda
- 2004

We consider N = 8 gauged supergravity in D = 4 and D = 5. We show one can weaken the boundary conditions on the metric and on all scalars with m2 < âˆ’ (Dâˆ’1)2 4 +1 while preserving the asymptoticâ€¦ (More)

We show there exist smooth asymptotically anti-de Sitter initial data which evolve to a big crunch singularity in a low energy supergravity limit of string theory. This opens up the possibility ofâ€¦ (More)

We find asymptotically anti de Sitter solutions in N = 8 supergravity which have negative total energy. This is possible since the boundary conditions required for the positive energy theorem areâ€¦ (More)

To gain insight in the quantum nature of the big bang, we study the dual field theory description of asymptotically anti-de Sitter solutions of supergravity that have cosmological singularities. Theâ€¦ (More)

We study a Randall-Sundrum cosmological scenario consisting of a domain wall in anti-de Sitter space with a strongly coupled large N conformal field theory living on the wall. The AdS/CFTâ€¦ (More)

Perturbation theory for gravity in dimensions greater than two requires higher derivatives in the free action. Higher derivatives seem to lead to ghosts, states with negative norm. We consider aâ€¦ (More)

- Thomas Hertog, Stefan Hollands
- 2005

We study the stability of designer gravity theories, in which one considers gravity coupled to a tachyonic scalar with anti-de Sitter boundary conditions defined by a smooth function W . We constructâ€¦ (More)

- Thomas Hertog, Gary T. Horowitz
- Physical review letters
- 2005

Motivated by the anti-de Sitter conformal field theory correspondence, we show that there is remarkable agreement between static supergravity solutions and extrema of a field theory potential. Forâ€¦ (More)

- James B. Hartle, Stephen W. Hawking, Thomas Hertog
- Physical review letters
- 2008

We consider the no-boundary proposal for homogeneous isotropic closed universes with a cosmological constant and a scalar field with a quadratic potential. In the semiclassical limit, it predictsâ€¦ (More)

- Aaron J. Amsel, Thomas Hertog, Stefan Hollands, Donald M. Marolf
- 2007

We investigate the stability of asymptotically anti-de Sitter gravity coupled to tachyonic scalar fields with mass at or slightly above the Breitenlohner-Freedman bound. The boundary conditions inâ€¦ (More)