Dark matter and the anthropic principle
نویسندگان
چکیده
منابع مشابه
Dark Matter and The Anthropic Principle
We evaluate the problem of galaxy formation in the landscape approach to phenomenology of the axion sector. With other parameters of standard ΛCDM cosmology held fixed, the density of cold dark matter is bounded below relative to the density of baryonic matter by the requirement that structure should form before the era of cosmological constant domination of the universe. Galaxies comparable to...
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I use Bousso’s causal diamond measure to make a statistical prediction for the dark matter abundance, assuming an axion with a large decay constant fa ≫ 10 GeV. Using a crude approximation for observer formation, the prediction agrees well with observation: 25% of observers see less dark matter than we do while 75% of observers see more dark matter. Larger values of the dark matter ratio are di...
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I use Bousso’s causal diamond measure to make a statistical prediction for the dark matter abundance, assuming an axion with a large decay constant fa ≫ 10 GeV. Using a crude approximation for observer formation, the prediction agrees well with observation: 30% of observers form in regions with less dark matter than we observe, while 70% of observers form in regions with more dark matter. Large...
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The human body is a constant flux of thousands of chemical/biological interactions and processes connecting molecules, cells, organs, and fluids, throughout the brain, body, and nervous system. Up until recently it was thought that all these interactions operated in a linear sequence, passing on information much like a runner passing the baton to the next runner. However, the latest findings in...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2005
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.72.123520