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arXiv · 0902.0239

The acoustic wave equation in the expanding universe. Sachs-Wolfe theorem

Wojciech Czaja·Zdzislaw A. Golda·Andrzej Woszczyna
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Abstract

In this paper the acoustic field propagating in the early hot ($p=ε/$) universe of arbitrary space curvature ($K=0, \pm 1$) is considered. The field equations are reduced to the d'Alembert equation in an auxiliary static Roberson-Walker space-time. Symbolic computation in {\em Mathematica} is applied.

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Wojciech Czaja, Zdzislaw A. Golda, Andrzej Woszczyna. 2009-04-14. The acoustic wave equation in the expanding universe. Sachs-Wolfe theorem. https://arxiv.org/abs/0902.0239

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