3.8k citations · 6.9k across the 12 of their papers we have counts for
12 papers
Inflation and late-time accelerated expansion driven by -essence degenerate dynamics
Alexsandre L. Ferreira Junior, Nelson Pinto-Neto, Jorge Zanelli
We consider a k-essence model in which a single scalar field can be responsible for both primordial inflation and the present observed acceleration of the cosmological background g…
Lie-algebra expansions, Chern-Simons theories and the Einstein-Hilbert lagrangian
José D. Edelstein, Mokhtar Hassaïne, Ricardo Troncoso +1
Starting from gravity as a Chern-Simons action for the AdS algebra in five dimensions, it is possible to deform the theory through an expansion of the Lie algebra that leads to a s…
Quasinormal modes for massless topological black holes
Rodrigo Aros, Cristian Martinez, Ricardo Troncoso +1
An exact expression for the quasinormal modes of scalar perturbations on a massless topological black hole in four and higher dimensions is presented. The massive scalar field is n…
Conserved charges for gravity with locally AdS asymptotics
Rodrigo Aros, Mauricio Contreras, Rodrigo Olea +2
A new formula for the conserved charges in 3+1 gravity for spacetimes with local AdS asymptotic geometry is proposed. It is shown that requiring the action to have an extremum for…
Instanton-like Excitations in 2D Fermionic Field Theory
J. L. Cortes, J. Gamboa, I. Schmidt +1
New non-perturbatives excitations in the massless Thirring and Schwinger models are discussed.
Conformally dressed black hole in 2+1 dimensions
Cristian Martinez, Jorge Zanelli
A three dimensional black hole solution of Einstein equations with negative cosmological constant coupled to a conformal scalar field is given. The solution is static, circularly s…
Higher dimensional Chern-Simons supergravity
Maximo Banados, Ricardo Troncoso, Jorge Zanelli
A Chern-Simons action for supergravity in odd-dimensional spacetimes is proposed. For all odd dimensions, the local symmetry group is a non trivial supersymmetric extension of the…
Black Hole Entropy and the Dimensional Continuation of the Gauss-Bonnet Theorem
Máximo Bañados, Claudio Teitelboim, Jorge Zanelli
The Euclidean black hole has topology . It is shown that -in Einstein's theory- the deficit angle of a cusp at any point in and the area of the…
Bose-Fermi Transformation In Three Dimensional Space
Luis Huerta, Jorge Zanelli
A generalization of the Jordan-Wigner transformation to three (or higher) dimensions is constructed. The nonlocal mapping of spin to fermionic variables is expressed as a gauge tra…
Dimensionally Continued Black Holes
Maximo Banados, Claudio Teitelboim, Jorge Zanelli
Static, spherically symmetric solutions of the field equations for a particular dimensional continuation of general relativity with negative cosmological constant are studied. The…
Geometry of the 2+1 Black Hole
Maximo Banados, Marc Henneaux, Claudio Teitelboim +1
The geometry of the spinning black holes of standard Einstein theory in 2+1 dimensions, with a negative cosmological constant and without couplings to matter, is analyzed in detail…
The Black Hole in Three Dimensional Space Time
Máximo Bañados, Claudio Teitelboim, Jorge Zanelli
The standard Einstein-Maxwell equations in 2+1 spacetime dimensions, with a negative cosmological constant, admit a black hole solution. The 2+1 black hole -characterized by mass,…