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Dark Energy

Norbert Straumann
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Abstract

After some remarks about the history and the mystery of the vacuum energy I shall review the current evidence for a cosmologically significant nearly homogeneous exotic energy density with negative pressure (`Dark Energy'). Special emphasis will be put on the recent polarization measurements by WMAP and their implications. I shall conclude by addressing the question: Do the current observations really imply the existence of a dominant dark energy component?

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Norbert Straumann. 2003-11-26. Dark Energy. https://arxiv.org/abs/gr-qc/0311083

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