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2022-08-03: What Happens Inside a Proton?

  • 11:28: ... phase shift at each spatial point. Those   complex numbers are fine in the Feynman path integral because they get squared and ...

2019-10-21: Is Time Travel Impossible?

  • 02:23: ... by allowing mass to take values in the weird realm of imaginary or complex numbers. ...

2017-07-07: Feynman's Infinite Quantum Paths

  • 06:10: However, probability amplitudes are what we call complex numbers.
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