منابع مشابه
Modern Cosmology and Anthropic
Abstract: The anthropic fine-tuning of the cosmos refers to the claim that the laws of nature, the constants of physics, and the initial conditions of the universe must be set to an enormous degree of precision for life to exist. Three major responses have been offered to this fine-tuning: the multiverse explanation; theism; and the claim that it is just a brute fact that requires no further ex...
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An introduction to modern cosmology is given, focusing on theories for the origin of structure in the Universe. After a brief review of the theory of growth of cosmological perturbations and a summary of some important observational results, most of the article is devoted to discussions of the inflationary Universe scenario and of topological defect models of structure formation. The final chap...
متن کاملThe limits of cosmology
What can we know about the universe? I outline a few of the fundamental limitations that are posed to our understanding of the cosmos, such as the existence of horizons, the fact that we occupy a specific place in space and time, the possible presence of dark components, the absence of a reliable physical framework to interpret the behaviour of the very early universe.
متن کاملSoft limits in holographic cosmology
We study the soft limits of cosmological correlators from a holographic perspective, showing how the inflationary consistency relations arise from the diffeomorphism invariance of the dual quantum field theory. Starting from the corresponding Ward identity, by taking moments we derive the leading and subleading behaviour of the stress tensor 3point function in the limit as one momentum vanishes...
متن کاملDogmatism and Theoretical Pluralism in Modern Cosmology
This work discusses the presence of a dogmatic tendency within modern cosmology, and some ideas capable of neutralizing its negative influence. It is verified that warnings about the dangers of dogmatic thinking in cosmology can be found as early as the 1930’s, and we discuss the modern appearance of “scientific dogmatism”. The solution proposed to counteract such an influence, which is capable...
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ژورنال
عنوان ژورنال: Journal of The Korean Astronomical Society
سال: 2012
ISSN: 1225-4614
DOI: 10.5303/jkas.2012.45.3.65