A universe in a global monopole
作者:
Katherine Benson,
Inyong Cho,
期刊:
AIP Conference Proceedings
(AIP Available online 1901)
卷期:
Volume 586,
issue 1
页码: 28-33
ISSN:0094-243X
年代: 1901
DOI:10.1063/1.1419528
出版商: AIP
数据来源: AIP
摘要:
We investigate brane physics in a universe with an extra dimensional global monopole and negative bulk cosmological constant. To counter divergence of the graviton zero mode, we employ a physical cut-off. This cut-off yields 4D gravity on a brane at the monopole core; it also solves the hierarchy problem, by inducing the observed hierarchy between particle and Planck scales in the effective 4D universe. Our model has a discrete spectrum of massive Kaluza Klein modes, easily made consistent with 4D gravity on the brane. Extra-dimensional matter fields also induce 4D matter fields on the brane, with the same Kaluza Klein spectrum of excited states. ©2001 American Institute of Physics.
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