Events at 402 Classroom, Physics South Hall, UCB-Campus

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Abstract: What does a collection of interacting rigid tops have in common with the gauge theories that describe our fundamental theories of nature? The answer is: their Hilbert space! In this talk I will go over a basic exercise in quantum mechanics, which is finding the energies and eigenfunctions of a free rigid top. This alone is of interest in … Read More

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Abstract: It has long been conjectured that global symmetries can only be approximate in a theory of quantum gravity. In this talk, I discuss two pieces of work to quantify this statement, putting lower bounds on the amount of violation. In the first calculation, I discuss the global symmetry violation in a black hole evaporation process. The degree to which … Read More

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Note: this event will be held at UC Berkeley: 402 Classroom, Physics South Hall, UCB-Campus Title: Gravitational Direct Detection of Dark Matter Abstract: Dark matter makes up roughly a quarter of the energy content of the universe, yet decades of searches for non-gravitational interactions have come up empty. This motivates a complementary strategy: dark matter produces small but measurable perturbations to the spacetime … Read More