The Feynman checkerboard, or relativistic chessboard model, was Richard Feynman’s sum-over-paths formulation of the kernel for a free spin-½ particle moving in one spatial dimension. It provides a representation of solutions of the Dirac equation in (1+1)-dimensional spacetime as discrete sums. The model can be visualised by considering relativistic random walks on a two-dimensional spacetime checkerboard. At each discrete timestep the particle of mass moves a distance to the left or right ( being the speed of light). For such a discrete motion, the Feynman path integral reduces to a sum over the possible paths. Feynman demonstrated that if each "turn" (change of moving from left to right or conversely) of the space–time path is weighted by (with denoting the reduced Planck's constant), in the limit of infinitely small checkerboard squares the sum of all weighted paths yields a propagator that satisfies the one-dimensional Dirac equation. As a result, helicity (the one-dimensional equivalent of spin) is obtained from a simple cellular-automata-type rule. The checkerboard model is important because it connects aspects of spin and chirality with propagation in spacetime and is the only sum-over-path formulation in which quantum phase is discrete at the level of the paths, taking only values corresponding to the 4th roots of unity. (Wikipedia).
How to Use the Feynman Technique - Study Tips - How to Study
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From playlist It Starts With Literacy
Richard Feynman said that I'm Smart Enough to Know That I'm Dumb
"I'm Smart Enough to Know That I'm Dumb". This is something that Richard Feynman said long ago, but this applies to math to. In this video I talk about exactly how and how it applies to math proofs and our study of mathematics. What do you think?
From playlist Inspiration and Advice
M. Skopenkov / A. Ustinov: Feynman checkers:quantum mechanics on a checkered paper
VIRTUAL LECTURE Recording during the meeting "Discrepancy Theory and Applications" Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywo
From playlist Jean-Morlet Chair - Tichy/Rivat
These are some of the math books that Richard Feynman used to self-study mathematics. Feynman won the Nobel Prize in Physics in 1965. Calculus for the Practical Man: https://amzn.to/3yxcFBl His Physics Books: https://amzn.to/3T9PdDG Trigonometry for the Practical Man: https://amzn.to/3JAQ
From playlist Book Reviews
Francis Brown - Introduction to Feynman Amplitudes
In this talk, aimed at master's and Ph.D students, I will explain how to assign integrals to certain graphs representing physical processes. After discussing the standard integral representations and their underlying geometry, I will give an overview of what is presently known and not know
From playlist 5e Séminaire Itzykson : "Feynman Integrals"
Feynman Bytes Ep 3: Only a Guess (Code)
How do we adapt humanity’s best problem-solving technique, science, to writing code? Professor Richard Feynman was a Nobel-prize winning physicist & a genius. He was also a great educator and thinker on the topic of science. This occasional series on the Continuous Delivery channel looks
From playlist Feynman Bytes
Inside the Mind of Richard Feynman: The Great Explainer
In today's SciShow episode of Great Minds, we're diving into the life of Richard Feynman. Aside from being a great scientist and teacher, he was a kooky and curious guy who played the bongos, painted, and did math in strip clubs. Hank shares favorite facts about Feynman with us in this fu
From playlist Uploads
Great Minds: Richard Feynman - The Uncertainty Of Knowledge
http://facebook.com/ScienceReason ... Great Minds, Great Words: Richard Feynman - The Uncertainty of Knowledge ... The Nature and Purpose of the Universe. Playlist "Great Minds, Great Words": • http://www.youtube.com/user/FFreeThinker#grid/user/CC4F721030F8D4D1 --- Please SUBSCRIBE to Sc
From playlist Feynman's Lectures
MIT 3.60 | Lec 2a: Symmetry, Structure, Tensor Properties of Materials
Part 1: Introduction to Crystallography View the complete course at: http://ocw.mit.edu/3-60F05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 3.60 Symmetry, Structure & Tensor Properties of Material
Richard Feynman: Quantum Mechanical View of Reality 1
In this series of 4 lectures, Richard Feynman introduces the basic ideas of quantum mechanics. The main topics include: the basics, the Heisenberg’s uncertainty principle, Bell’s theorem and the Einstein-Podolsky-Rosen paradox.
From playlist Feynman's Lectures
"Beyond Einstein" World Wide Webcast
From playlist 2005: Beyond Einstein - World Wide Webcast
Richard Feynman Thinking Part 1 of 2
Richard Phillips Feynman was an American physicist known for the path integral formulation of quantum mechanics, the theory of quantum electrodynamics and the physics of the super fluidity of super cooled liquid helium, as well as work in particle physics (he proposed the Parton model). Fo
From playlist Feynman's Lectures
Rose Kaplan-Kelly: Right-angled Links in Thickened Surfaces
Rose Kaplan-Kelly, Temple University Title: Right-angled Links in Thickened Surfaces Traditionally, alternating links are studied with alternating diagrams on $S^2$ in $S^3$. In this talk, we will consider links which are alternating on higher genus surfaces $S_g$ in $S_g \times I$. We wil
From playlist 39th Annual Geometric Topology Workshop (Online), June 6-8, 2022
12. Two-point statistics (worked example tutorial)
2-point statistics or 2-point spatial correlations are a valuable tool for quantifying microstructure with two phases. These can serve as valuable structural features. This tutorial comes from the PyMKS library and is based on Fullwood, Niezgoda, and Kalidindi's work. Check out the whole
From playlist Materials Informatics
Opportunities in Atomic-Scale Legoland - Stevan Nadj-Perge - 11/6/2019
Earnest C. Watson Lecture by Professor Stevan Nadj-Perge, "Opportunities in Atomic-Scale Legoland: From Novel Electronic Phases to Quantum Devices." Are there limits to how small electronic devices can be? In this lecture, Nadj-Perge will discuss materials that are only a few atoms thick
From playlist Caltech Watson Lecture Series
Stereo Vision | Student Competition: Computer Vision Training
In this video, you will learn about stereo vision and calibrating stereo cameras. We will use an example of reconstructing a scene using stereo vision. Get files: https://bit.ly/2ZBy0q2 Explore the MATLAB and Simulink Robotics Arena: https://bit.ly/2yIgwfS ---------------------------------
From playlist Student Competition: Computer Vision Training
Checkerboard pattern for magnetic levitation
This video is part of my series on how to handle neodymium magnets safely. This is a more advanced lesson on how to make a matrix of magnets with the poles in a checkerboard pattern. This is what you need to make a piece of diamagnetic pyrolytic graphite levitate. I will also give you som
From playlist Handling magnets safely
Richard Feynman - The.Character.of.Physical.Law - Part 2 (full version)
Richard Feynman - The.Character.of.Physical.Law Part 2: The Relation of Mathematics to Physics (full version)
From playlist Feynman's Lectures
This video illustrates the importance of antialiasing in 3D content. This video has the same 14-second scene rendered 4 times with different settings each time. Pay attention to the annotations. It is rendered with POV-Ray, but the technique is similar to mipmapping / anisotropic filte
From playlist Misc. productions
Richard Feynman Lecture on Quantum Electrodynamics: QED. 1/8
Part 2: http://www.youtube.com/watch?v=rKjpk3dkIZI Richard Feynman gives us a lecture on Quantum electrodynamcis, the theory of photons and electron interactions which incorporates his unique view of the fundamental processes that create it. one of the 3 winners of the 1965 Nobel prize in
From playlist Feynman's Lectures