Inflation from quantum geometry

被引：162

作者：

Bojowald, M ^{[1
]}

机构：

[1] Penn State Univ, Ctr Gravitat Phys & Geometry, Davey Lab 104, University Pk, PA 16802 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 26期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.89.261301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Quantum geometry predicts that a universe evolves through an inflationary phase at small volume before exiting gracefully into a standard Friedmann phase. This does not require the introduction of additional matter fields with ad hoc potentials; rather, it occurs because of a quantum gravity modification of the kinetic part of ordinary matter Hamiltonians. An application of the same mechanism can explain why the present day cosmological acceleration is so tiny.

引用

页数：4

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