70 citations · 229 across the 14 of their papers we have counts for
15 papers
Manifold invariants affect dynamics in ADS gravity
Tomas Liko
The first-order Holst action with negative cosmological constant is rendered finite by requiring functional differentiability on the configuration space of tetrads and connections.…
Isolated horizons in classical and quantum gravity
Jonathan Engle, Tomas Liko
Isolated horizons are a quasi-local framework, developed over the last 15 years by many authors, for modeling black holes `in equilibrium' that involves assumptions only about geom…
Barbero-Immirzi parameter, manifold invariants and Euclidean path integrals
Tomas Liko
The Barbero-Immirzi parameter appears in the \emph{real} connection formulation of gravity in terms of the Ashtekar variables, and gives rise to a one-parameter quantization am…
Isolated horizons, p-form matter fields, topology and the black-hole/string correspondence principle
Tomas Liko
We study the mechanics of D-dimensional isolated horizons (IHs) for Einstein gravity in the presence of arbitrary p-form matter fields. This generalizes the analysis of Copsey and…
Extending the isolated horizon phase space to string-inspired gravity models
Tomas Liko
An isolated horizon (IH) is a null hypersurface at which the geometry is held fixed. This generalizes the notion of an event horizon so that the black hole is an object that is in…
First-order action and Euclidean quantum gravity
Tomas Liko, David Sloan
We show that the on-shell path integral for asymptotically flat Euclidean spacetimes can be given in the first-order formulation of general relativity, without assuming the boundar…