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Martin Schmaltz: Hubble tension update
Martin Schmaltz: Hubble tension update
This seminar will give an introduction to and status update of the Hubble tension, the 6 sigma discrepancy between the two most precise methods for measuring the expansion rate of our Universe. The most promising resolutions of the tension employ … Read More
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David Kaplan: Shadow Matter
David Kaplan: Shadow Matter
I will review how one gets classical physics from quantum theories. Then I will show that there are quantum states of the field theories of general relativity and electromagnetism that we typically ignore, but have interesting phenomenological effects. These states … Read More