Tag Archives: Richard Feynman

Free version of the Feynman Lectures on Physics

There is a free version of the Feynman Lectures on Physics provided by Caltech. http://www.feynmanlectures.caltech.edu/ See also http://www.feynmanlectures.info/ Image credit: http://www.theory.caltech.edu/~preskill/talks/APS-April-2018-Feynman-4-3.pdf Caltech reminds that: “However, we want to be clear that this edition is only free to read online, and this … Continue reading

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Story of how Feynman tried to get rid of fields but couldn’t

The “field” concept is a useful theoretical construct in physics. Fields can be quantized. The electromagnetic field consists of quanta known as photons. In QFT (Quantum Field Theory) the elementary particles are thought of as quanta of their respective field. … Continue reading

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Detailed history of Feynman Diagrams

I have been reading and thinking about the self-interaction problem of elementary particles. Feynman’s name comes up often in my readings. I may say few words about the self-interaction problem in the near future but today I wanted to bring to your … Continue reading

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Stephen Wolfram on Richard Feynman

There is a gem of an article by Stephen Wolfram titled “A Short Talk About Richard Feynman.” I found these comments from that article very interesting: “I think Feynman—at least in the years I knew him—was much more driven by … Continue reading

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Explanation of why QM wavefunction is complex valued

In my previous post titled “QM wavefunction and its many interpretations” I stressed the fact that the quantum mechanical wavefunction is complex valued. This means that and the algebra of complex numbers are essential ingredients of the quantum mechanical wavefuntion. … Continue reading

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