Harrison-Zeldovich spectrum from conformal invariance
Harrison-Zeldovich spectrum from conformal invariance
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DOI：
10.1088/1475-7516/2009/09/030
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发表时间：
2009-06
影响因子：
6.4
通讯作者：
V. Rubakov
中科院分区：
文献类型：
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作者：
V. Rubakov
我们证明了在多分量标量场理论中，只要该理论是共形不变的，它具有一定的全局对称性，并且四次势为负，就可以用一种简单的方法产生场的小扰动的平谱。我们提出了一种将这些场扰动转化为具有平坦谱的绝热标量扰动的机制。
We show that flat spectrum of small perturbations of field(s) is generated in a simple way in a theory of multi-component scalar field provided this theory is conformally invariant, it has some global symmetry and the quartic potential is negative. We suggest a mechanism of converting these field perturbations into adiabatic scalar perturbations with flat spectrum.