2min chapter

Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas cover image

222 | Andrew Strominger on Quantum Gravity and the Real World

Sean Carroll's Mindscape: Science, Society, Philosophy, Culture, Arts, and Ideas

CHAPTER

Observational Astronomy and the Photon Ray

In the last few years, conformal symmetry keeps popping up. It's of interest both to observational astronomers and to theoretical physicists trying to understand the holographic principle of the mysteries of quantum black holes. And that's this business of the photon ray.

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