In quantum mechanics the delta potential is a potential well mathematically described by the Dirac delta function - a generalized function. Qualitatively, it corresponds to a potential which is zero everywhere, except at a single point, where it takes an infinite value. This can be used to simulate situations where a particle is free to move in two regions of space with a barrier between the two regions. For example, an electron can move almost freely in a conducting material, but if two conducting surfaces are put close together, the interface between them acts as a barrier for the electron that can be approximated by a delta potential. The delta potential well is a limiting case of the finite potential well, which is obtained if one maintains the product of the width of the well and the potential constant while decreasing the well's width and increasing the potential. This article, for simplicity, only considers a one-dimensional potential well, but analysis could be expanded to more dimensions. (Wikipedia).
Delta function potential I: Preliminaries
MIT 8.04 Quantum Physics I, Spring 2016 View the complete course: http://ocw.mit.edu/8-04S16 Instructor: Barton Zwiebach License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 8.04 Quantum Physics I, Spring 2016
Bound State of the Delta Function Potential
We apply boundary conditions to find the bound state of the delta function potential.
From playlist Quantum Mechanics Uploads
Ex 1: Limit Definition - Determine Delta for an Arbitrary Epsilon (Linear)
This video explains how to determine an expression of delta for an arbitrary epsilon that can be used to prove a limit exists. http://mathispower4u.com
From playlist Limits
Reviews the intuitive notion of a continuous-time impulse or Dirac delta function and the sifting property. http://AllSignalProcessing.com for more great signal processing content, including concept/screenshot files, quizzes, MATLAB and data files.
From playlist Background Material
Ex 2: Limit Definition - Determine Delta for an Arbitrary Epsilon (Quadratic)
This video explains how to determine an expression of delta for an arbitrary epsilon that can be used to prove a limit exists. http://mathispower4u.com
From playlist Limits
Ex: Limit Definition - Find Delta Values, Given Epsilon For a Limit
This video explains how to determine which delta values satisfy a given epsilon of a limit. http://mathispower4u.com
From playlist Limits
Calculus 3.03f - Derivative Example 6
Another of example of finding a derivative using the definition of the derivative.
From playlist Calculus Ch 3 - Derivatives
Epsilon delta limit (Example 3): Infinite limit at a point
This is the continuation of the epsilon-delta series! You can find Examples 1 and 2 on blackpenredpen's channel. Here I use an epsilon-delta argument to calculate an infinite limit, and at the same time I'm showing you how to calculate a right-hand-side limit. Enjoy!
From playlist Calculus
Finding Derivatives Using the Limit Definition
http://mathispower4u.wordpress.com/
From playlist Differentiation
19.4 Equipotential Surfaces and Their Relation to the Electric Field
This video covers Section 19.4 of Cutnell & Johnson Physics 10e, by David Young and Shane Stadler, published by John Wiley and Sons. The lecture is part of the course General Physics - Life Sciences I and II, taught by Dr. Boyd F. Edwards at Utah State University. This video was produced
From playlist Lecture 19B. Electric Potential Energy and the Electric Potential
26. Chemical and biological oxidation/reduction reactions
MIT 5.111 Principles of Chemical Science, Fall 2008 View the complete course: http://ocw.mit.edu/5-111F08 Instructor: Catherine Drennan, Elizabeth Vogel Taylor License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 5.111 Principles of Chemical Science, Fall 2008
Shape of the Nuclear Potential
Describing the shape of the nuclear potential over the range of the nuclear force. Explains why nucleons aren't crushed together.
From playlist Nuclear Physics
26. Chemical and Biological Oxidations
MIT 5.111 Principles of Chemical Science, Fall 2014 View the complete course: https://ocw.mit.edu/5-111F14 Instructor: Catherine Drennan Viewers are introduced to agents of oxidation and agents of reduction. Are oxidizing agents really that bad for you? Hear from Professor John Essigmann
From playlist MIT 5.111 Principles of Chemical Science, Fall 2014
Cell Potential & Gibbs Free Energy, Standard Reduction Potentials, Electrochemistry Problems
This chemistry video tutorial discusses the relationship between cell potential and gibbs free energy. It contains plenty of examples and chemistry practice problems. It discusses the signs of the potential energy and delta G in determining if a reaction is spontaneous or nonspontaneous.
From playlist New AP & General Chemistry Video Playlist
Lec 26 | MIT 5.111 Principles of Chemical Science, Fall 2005
Oxidation/Reduction (cont.) (Prof. Catherine Drennan) View the complete course: http://ocw.mit.edu/5-111F05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 5.111 Principles of Chemical Science, Fall 2005
Lec 25 | MIT 5.111 Principles of Chemical Science, Fall 2005
Oxidation/Reduction (Prof. Catherine Drennan) View the complete course: http://ocw.mit.edu/5-111F05 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 5.111 Principles of Chemical Science, Fall 2005
Physics 70 Principle of Least Action (20 of 27) The Principle Derived (Part 2/4)
Visit http://ilectureonline.com for more math and science lectures! We will mathematically derive the Principle of Least Action. (Part 2 of 4) To donate: http://www.ilectureonline.com/donate https://www.patreon.com/user?u=3236071 . Next video in this series can be seen at: https://youtu.
From playlist PHYSICS 70 PRINCIPLE OF LEAST ACTION: ADVANCED MECHANICS
Epsilon-Delta Definition of a Limit (Not Examinable)
This video introduces the formal definition for the limit of a function at a point. Presented by Norman Wildberger of the School of Mathematics and Statistics, UNSW.
From playlist Mathematics 1A (Calculus)
Lec 15 | MIT 5.60 Thermodynamics & Kinetics, Spring 2008
Lecture 15: Chemical equilibrium. View the complete course at: http://ocw.mit.edu/5-60S08 License: Creative Commons BY-NC-SA More information at http://ocw.mit.edu/terms More courses at http://ocw.mit.edu
From playlist MIT 5.60 Thermodynamics & Kinetics, Spring 2008