Future foam: Nontrivial topology from bubble collisions in eternal inflation
Future foam: Nontrivial topology from bubble collisions in eternal inflation
复制标题
未来泡沫:永恒膨胀中泡沫碰撞的非平凡拓扑
DOI:
10.1103/physrevd.78.063538
复制
发表时间:
2008
影响因子:
5
通讯作者:
Chen
中科院分区:
文献类型:
--
作者:
R. Bousso;Ben Freivogel;Y. Sekino;S. Shenker;L. Susskind;I;Chen
We study pocket universes which have zero cosmological constant and nontrivial boundary topology. These arise from bubble collisions in eternal inflation. Using a simplified dust model of collisions we find that boundaries of any genus can occur. Using a radiation shell model we perform analytic studies in the thin-wall limit to show the existence of geometries with a single toroidal boundary. We give plausibility arguments that higher genus boundaries can also occur. In geometries with one boundary of any genus a timelike observer can see the entire boundary. Geometries with multiple disconnected boundaries can also occur. In the spherical case with two boundaries the boundaries are separated by a horizon. Our results suggest that the holographic dual description for eternal inflation, proposed by Freivogel, Sekino, Susskind and Yeh, should include summation over the genus of the base space of the dual conformal field theory. We point out peculiarities of this genus expansion compared to the string perturbation series.
影响因子:
8.6
作者:
D. Langlois;K. Maeda;D. Wands
通讯作者:
D. Langlois;K. Maeda;D. Wands
影响因子:
5
作者:
Ben Freivogel;Y. Sekino;L. Susskind;Chen-Pin Yeh
通讯作者:
Ben Freivogel;Y. Sekino;L. Susskind;Chen-Pin Yeh