"My strongest memory of [Feynman’s junior quantum mechanics course] is the very beginning, when he started, not with some deep principle of nature, or some experiment, but with a review of Gaussian integrals. Clearly, there was some calculating to be done. I did get over my shyness one time, to ask him about the infinities that appear in quantum field theory (QFT): do they have a physical interpretation? Feynman said ‘no.’ In retrospect, he must have known more, from the work of Wilson, Weinberg, and others. But perhaps it did not satisfy him, since he had not derived it himself. But this question tugged on me for the next eight years, and was my first deep result."
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Academics from the United StatesNon-fiction authors from the United StatesNobel laureates in PhysicsNobel laureates from the United StatesPhysicists from the United States
Original Language: English
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Sources
Joseph Polchinski, Memories of a Theoretical Physicist (2017).
https://en.wikiquote.org/wiki/Richard_Feynman
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