Dark Energy ∗
نویسنده
چکیده
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 astronomical observations really imply the existence of a dominant dark energy component?
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