Testing dispersion relations of quantum κ-Poincare algebra on cosmological ground

被引:64
作者
Kowalski-Glikman, J [1 ]
机构
[1] Univ Wroclaw, Inst Theoret Phys, PL-50204 Wroclaw, Poland
关键词
D O I
10.1016/S0370-2693(01)00027-2
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Following the procedure proposed recently by Martin and Brandenberger we investigate the spectrum of the cosmological perturbations in the case when the "trans-Plackian" dispersion relations are motivated by the quantum K-Poincare algebra. We find that depending on the choice of initial conditions of the perturbations, the spectrum either differs from the flat one for instantaneous Minkowski vacuum or, in the case of initial conditions minimizing energy density, leads to the observed scale-invariant Harrison-Zel'dovich spectrum in the Friedmann epoch. (C) 2001 Published by Elsevier Science B.V.
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页码:1 / 8
页数:8
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