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Recorded: 2016/12/17 Published: 2017/06/02
Jim and Randy discuss gravitational theories that modify general relativity by changing the action using a polynomial dependence on the Ricci scalar. Although not physically motivated, some of these theories produce effects similar to those of dark matter, dark energy, and cosmological constants.
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Notes:
1. "f(R) Theories of Gravity, by Thomas Sotiriou and Valerio Faraoni". The basis for this discussion and the next program's, as well.
2. Our subreddit.
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