Quanum gravity is a theory that claims space and time are not what you think they are, even after con to mechanics. And more than that, it's said, space and timea we don't yet know. This is a fantastic open problem the core of modern physics. We don't understand the busy grammar of the universe. So i'm taking the opportunity to sit down with one of the world's experts in quanum gravity and have a chat,. fantastic.
Quantum mechanics and general relativity are the two great triumphs of twentieth-century theoretical physics. Unfortunately, they don't play well together -- despite years of effort, we currently lack a completely successful quantum theory of gravity, although there are some promising ideas out there. Carlo Rovelli is a pioneer of one of those ideas, loop quantum gravity, as well as the bestselling author of such books as Seven Brief Lessons on Physics and the recent The Order of Time. We talk about how to make progress on this knotty problem, including whether string theory will play a role (Carlo thinks not). [smart_track_player url="http://traffic.libsyn.com/seancarroll/rovelli.mp3" social_email="true" hashtag="mindscapepodcast" ] Carlo Rovelli is a professor of theoretical physics at the Centre de Physique Théorique de Luminy of Aix-Marseille University in France. In 1988, he and Abhay Ashtekar and Lee Smolin introduced the idea of loop quantum gravity. He is also the author of the "relational" interpretation of quantum mechanics. Home page Wikipedia page Google Scholar publications Amazon.com author page Talk on The Physics and Philosophy of Time Twitter Download Episode
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