258 citations · 779 across the 22 of their papers we have counts for
15 papers · 1 filter
Lobachevsky holography in conformal Chern-Simons gravity
Mario Bertin, Sabine Ertl, Hossein Ghorbani +3
We propose Lobachevsky boundary conditions that lead to asymptotically H^2xR solutions. As an example we check their consistency in conformal Chern-Simons gravity. The canonical ch…
Holographic two-point functions for 4d log-gravity
Niklas Johansson, Ali Naseh, Thomas Zojer
We compute holographic one- and two-point functions of critical higher-curvature gravity in four dimensions. The two most important operators are the stress tensor and its logarith…
Conformal Chern-Simons holography - lock, stock and barrel
Hamid Afshar, Branislav Cvetković, Sabine Ertl +2
We discuss a fine-tuning of rather generic three dimensional higher-curvature gravity actions that leads to gauge symmetry enhancement at the linearized level via partial masslessn…
Restrictions on infinite sequences of type IIB vacua
Andreas P. Braun, Niklas Johansson, Magdalena Larfors +1
Ashok and Douglas have shown that infinite sequences of type IIB flux vacua with imaginary self-dual flux can only occur in so-called D-limits, corresponding to singular points in…
Holograms of Conformal Chern-Simons Gravity
H. Afshar, B. Cvetkovic, S. Ertl +2
We show that conformal Chern-Simons gravity in three dimensions has various holographic descriptions. They depend on the boundary conditions on the conformal equivalence class and…
Short-cut to new anomalies in gravity duals to logarithmic conformal field theories
Daniel Grumiller, Niklas Johansson, Thomas Zojer
Various massive gravity theories in three dimensions are conjecturally dual to logarithmic conformal field theories (LCFTs). We summarise the status of these conjectures. LCFTs are…
All stationary axi-symmetric local solutions of topologically massive gravity
Sabine Ertl, Daniel Grumiller, Niklas Johansson
We classify all stationary axi-symmetric solutions of topologically massive gravity into Einstein, Schrödinger, warped and generic solutions. We construct explicitly all local solu…
Erratum to `Instability in cosmological topologically massive gravity at the chiral point', arXiv:0805.2610
Sabine Ertl, Daniel Grumiller, Niklas Johansson
We correct a sign in the first variation of the on-shell action of cosmological topologically massive gravity at the chiral point and present the three equations affected by that s…
Consistent boundary conditions for cosmological topologically massive gravity at the chiral point
Daniel Grumiller, Niklas Johansson
We show that cosmological topologically massive gravity at the chiral point allows not only Brown-Henneaux boundary conditions as consistent boundary conditions, but slightly more…
Canonical analysis of cosmological topologically massive gravity at the chiral point
D. Grumiller, R. Jackiw, N. Johansson
Wolfgang Kummer was a pioneer of two-dimensional gravity and a strong advocate of the first order formulation in terms of Cartan variables. In the present work we apply Wolfgang Ku…
Instability in cosmological topologically massive gravity at the chiral point
Daniel Grumiller, Niklas Johansson
We consider cosmological topologically massive gravity at the chiral point with positive sign of the Einstein-Hilbert term. We demonstrate the presence of a negative energy bulk mo…
Deforming, revolving and resolving - New paths in the string theory landscape
Diego Chialva, Ulf H. Danielsson, Niklas Johansson +2
In this paper we investigate the properties of series of vacua in the string theory landscape. In particular, we study minima to the flux potential in type IIB compactifications on…
The world next door - Results in landscape topography
Ulf H. Danielsson, Niklas Johansson, Magdalena Larfors
Recently, it has become clear that neighboring multiple vacua might have interesting consequences for the physics of the early universe. In this paper we investigate the topography…
Stability of flux vacua in the presence of charged black holes
Ulf H. Danielsson, Niklas Johansson, Magdalena Larfors
In this letter we consider a charged black hole in a flux compactification of type IIB string theory. Both the black hole and the fluxes will induce potentials for the complex stru…
4D black holes and holomorphic factorization of the 0A matrix model
Ulf H. Danielsson, Niklas Johansson, Magdalena Larfors +2
In this letter, we relate the free energy of the 0A matrix model to the sum of topological and anti-topological string amplitudes. For arbitrary integer multiples of the matrix mod…