Holographic probabilities in eternal inflation

被引:138
作者
Bousso, Raphael [1 ]
机构
[1] Univ Calif Berkeley, Dept Phys, Ctr Theoret Phys, Berkeley, CA 94720 USA
[2] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA
关键词
D O I
10.1103/PhysRevLett.97.191302
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
In the global description of eternal inflation, probabilities for vacua are notoriously ambiguous. The local point of view is preferred by holography and naturally picks out a simple probability measure. It is insensitive to large expansion factors or lifetimes and so resolves a recently noted paradox. Any cosmological measure must be complemented with the probability for observers to emerge in a given vacuum. In lieu of anthropic criteria, I propose to estimate this by the entropy that can be produced in a local patch. This allows for prior-free predictions.
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页数:4
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