Skyrmion and Skyrme-Black holes in de Sitter spacetime
نویسندگان
چکیده
Numerical arguments are presented for the existence of regular and black hole solutions of the EinsteinSkyrme equations with a positive cosmological constant. These classical configurations approach asymptotically the de Sitter spacetime. The main properties of the solutions and the differences with respect to the asymptotically flat ones are discussed. It particular our results suggest that, for a positive cosmological constant, the mass evaluated as timelike infinity in infinite. Special emphasis is set to De Sitter black holes Skyrmions which display two horizons.
منابع مشابه
Instability of anti-de Sitter spacetime.
I will describe recent evidence that anti-de Sitter spacetime is nonlinearly unstable. Generic small but finite perturbations eventually form small black holes. I will also present evidence that there are special solutions, called geons, which remain close to anti-de Sitter. I will argue that one can put black holes inside the geons to obtain a family of black holes in anti-de Sitter spacetime ...
متن کاملar X iv : g r - qc / 0 51 01 01 v 1 2 3 O ct 2 00 5 Accelerated black holes in an anti - de Sitter universe
The C-metric is one of few known exact solutions of Einstein's field equations which describes the gravitational field of moving sources. For a vanishing or positive cosmological constant, the C-metric represents two accelerated black holes in asymptotically flat or de Sitter spacetime. For a negative cosmological constant the structure of the spacetime is more complicated. Depending on the val...
متن کاملFormation of Topological Black Holes from Gravitational Collapse
We consider the gravitational collapse of a dust cloud in an asymptotically anti de Sitter spacetime in which points connected by a discrete subgroup of an isometry subgroup of anti de Sitter spacetime are identified. We find that black holes with event horizons of any topology can form from the collapse of such a cloud. The quasilocal mass parameter of such black holes is proportional to the i...
متن کامل0 M ar 1 99 9 Thermodynamics of charged anti - de Sitter black holes in canonical ensemble
As in the grand canonical treatment of Reissner-Nordström black holes in anti-de Sitter spacetime, the canonical ensemble formulation also shows that non-extremal black holes tend to have lower action than extremal ones. However, some small non-extremal black holes have higher action, leading to the possibility of transitions between non-extremal and extremal black holes.
متن کاملBlack Holes in Anti-de Sitter Spacetime
Black holes in anti-de Sitter (AdS) spacetime are known to be thermodynamically stable against radiation, unlike their asymptotically flat counterparts. Moreover, Hawking and Page discovered that they exhibit a first-order phase transition. This was reinterpreted by Witten using the AdS/CFT correspondence as a confinement/deconfinement transition in the quark-gluon plasma. Extending the gauge/g...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2005