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1. Basics of Inflationary Cosmology - Berkeley Center for ...

1. Basics of Inflationary Cosmology - Berkeley Center for ...

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What cosmological model?<br />

These are the principles and physical laws underpinning the Universe.<br />

Hot big bang cosmology<br />

Describes the global properties <strong>of</strong> the Universe, its<br />

expansion, and its material content.<br />

Structure <strong>for</strong>mation by gravitational instability<br />

Describes the growth <strong>of</strong> structure from initially-small<br />

irregularities. Gravity <strong>for</strong> the initial collapse, lots <strong>of</strong> other<br />

physics in the details.<br />

<strong>Inflationary</strong> cosmology<br />

The leading candidate theory <strong>for</strong> explaining where those<br />

initial irregularities came from: quantum fluctuations<br />

during rapid expansion <strong>of</strong> the young Universe.

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