Started by josephpalazzo, May 12, 2014, 08:23:49 AM
Quote from: josephpalazzo on May 12, 2014, 08:23:49 AMYouâ€™ve probably heard many crazy ideas, and most of the time, they are just that, crazy. But once in a while one of those crazy ideas turns out to be correct. Feynmanâ€™s idea of the path integral was one of those crazy ideas. In this blog, you will see how Feynman put his "crazy" idea into a mathematical formulation with results that were equivalent to QFT. Path Integral SimplifiedAny comments would be appreciated.
Quote from: josephpalazzo on May 13, 2014, 06:38:55 AMThere's an anecdote as told by Zee in Quantum Field Theory in a Nutshell :In a double-slit experiment, a student asked: "what if you bore a third hole in the screen?" The professor replied,"Clearly, the amplitude for the particle to be detected at O is now given by the sum of three amplitudes." The professor was just about to continue when the student interjected again, "What if I drill a fourth and a fifth hole in the screen?" Now the professor is losing patience, "All right, wise guy, it is obvious that we just sum over all holes. " But the student said, "What if I drill an infinite number of holes so that the screen is no longer there?" The professor sighed:" Let's move on, there's a lot of material to cover in this course". That student was Richard Feynman.
Quote from: Solitary on May 13, 2014, 11:44:40 AM That really is a good question, and I'd like to know the answer---an Aleph of particles? Solitary
Quote from: Jason78 on May 13, 2014, 05:29:59 AMI got as far as time slicing before my brain gave out.