Quantum Mechanics Lessons from DrPhysicsA

Video Lectures

Displaying all 28 video lectures.
Lecture 1
Schrödinger's Equation: A simple derivation
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Schrödinger's Equation: A simple derivation
A basic derivation, in one dimension, of the Schrodinger Equations. I assume basic knowledge of algebra and calculus and some general physics. The video is aimed at somewhere between A level and 1st year undergraduate physics.
Lecture 2
The Wave Function
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The Wave Function
An explanation for the general choice of wave function to describe a particle in quantum mechanics
Lecture 3
Double & Single Slit Experiments and Diffraction Gratings
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Double & Single Slit Experiments and Diffraction Gratings
Describes the maths of the double and single slit experiments and the operation of the diffraction grating.
Lecture 4
Solving Schrödinger for a Hydrogen Atom (cheating) - Part 1
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Solving Schrödinger for a Hydrogen Atom (cheating) - Part 1
A cheat way to get to the Schrodinger solution for the hydrogen atom - in 3 parts - total time is approx 23 minutes,
Lecture 5
Solving Schrödinger for a Hydrogen Atom (cheating) - Part 2
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Solving Schrödinger for a Hydrogen Atom (cheating) - Part 2
A cheat way to get to the Schrodinger solution for the hydrogen atom - in 3 parts - total time is approx 23 minutes.
Lecture 6
Solving Schrödinger for a Hydrogen Atom (cheating) - Part 3
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Solving Schrödinger for a Hydrogen Atom (cheating) - Part 3
A cheat way to get to the Schrodinger solution for the hydrogen atom - in 3 parts - total time is approx 23 minutes.
Lecture 7
The reason for Quantum Mechanics - Part 1 of 3
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The reason for Quantum Mechanics - Part 1 of 3
A historical account of the discovery of the atom and the need for quantum mechanics to explain why atoms do not self-destruct.
Lecture 8
The reason for Quantum Mechanics - Part 2 of 3
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The reason for Quantum Mechanics - Part 2 of 3
A historical account of the discovery of the atom and the need for quantum mechanics to explain why atoms do not self-destruct.
Lecture 9
The reason for Quantum Mechanics - Part 3 of 3
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The reason for Quantum Mechanics - Part 3 of 3
A historical account of the discovery of the atom and the need for quantum mechanics to explain why atoms do not self-destruct.
Lecture 10
An Introduction to Quantum Mechanics
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An Introduction to Quantum Mechanics
An introduction to the principles of quantum mechanics, including Heisenberg's uncertainty principle and the consequences for momentum and angular momentum being quantised.
Lecture 11
Schrödinger's Equation for Free Particle and Particle in a Box (Part 1)
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Schrödinger's Equation for Free Particle and Particle in a Box (Part 1)
Schrodinger Equation for Free Particle and Particle in a Box
Part 1
Lecture 12
Schrödinger's Equation for Free Particle and Particle in a Box (Part 2)
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Schrödinger's Equation for Free Particle and Particle in a Box (Part 2)
Lecture 13
Schrödinger's Equation for Free Particle and Particle in a Box (Part 3)
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Schrödinger's Equation for Free Particle and Particle in a Box (Part 3)
Lecture 14
Blackbody Radiation and the UV Catastrophe - Part 1 of 3
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Blackbody Radiation and the UV Catastrophe - Part 1 of 3
A description of the Blackbody and Ultra Violet Catastrophe problem and an indication of how it was the door to the subject of Quantum Mechanics by postulating that light was formed of particles (photons) which were packets (quanta) of energy.
Lecture 15
Blackbody Radiation and the UV Catastrophe - Part 2 of 3
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Blackbody Radiation and the UV Catastrophe - Part 2 of 3
A description of the Blackbody and Ultra Violet Catastrophe problem and an indication of how it was the door to the subject of Quantum Mechanics by postulating that light was formed of particles (photons) which were packets (quanta) of energy.
Lecture 16
Blackbody Radiation and the UV Catastrophe - Part 3 of 3
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Blackbody Radiation and the UV Catastrophe - Part 3 of 3
A description of the Blackbody and Ultra Violet Catastrophe problem and an indication of how it was the door to the subject of Quantum Mechanics by postulating that light was formed of particles (photons) which were packets (quanta) of energy.
Lecture 17
The Einstein Podolsky Rosen (EPR) Paradox: A simple explanation
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The Einstein Podolsky Rosen (EPR) Paradox: A simple explanation
This video responds to a question about the EPR Paradox. It is explained in simple terms (no maths) but requires knowledge of some of the basics of Quantum Mechanics in my other videos. Too simple for experts!
Lecture 18
Bell's Inequality
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Bell's Inequality
A basic introduction to Bell's Inequality which shows that there cannot be hidden variables (a form of inbuilt DNA), as postulated by EPR, to explain how entangled particles behave.
Lecture 19
Schrodinger's Cat
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Schrodinger's Cat
A description of Schrodinger's thought experiment (no cats were harmed) which along with EPR challenged the emerging thinking of quantum mechanics in 1935
Lecture 20
Standing (Stationary) Waves
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Standing (Stationary) Waves
The disctinction between standing and traveling waves; a demonstration of how standing waves are formed; and their application to quantum physics.
Lecture 21
Fermi-Dirac and Bose-Einstein statistics: Basic Introduction
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Fermi-Dirac and Bose-Einstein statistics: Basic Introduction
A basic introduction to Fermi-Dirac and Bose-Einstein statistics and a comparison with Maxwell Boltzmann statistics
Lecture 22
Quantum Mechanics Concepts: Dirac Notation and Photon Polarization
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Quantum Mechanics Concepts: Dirac Notation and Photon Polarization
Part 1 of a series: covering Dirac Notation, the measurable Hermitian matrix, the eigenvector states and the eigenvalue measured outcomes and application to photon polarisation
Lecture 23
Quantum Mechanics Concepts: Photon Polarization II
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Quantum Mechanics Concepts: Photon Polarization II
Part 2 of a series: continues photon polarisation
Lecture 24
Quantum Mechanics Concepts: Electron Spin
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Quantum Mechanics Concepts: Electron Spin
Part 3 of a series: application of concepts to electron spin.
Lecture 25
Quantum Mechanics Concepts: Position, Momentum and Heisenberg
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Quantum Mechanics Concepts: Position, Momentum and Heisenberg
Part 4 of a series: deriving the position and momentum operators and Heisenberg's Uncertainty Principle.
Lecture 26
Quantum Mechanics Concepts: The EPR Paradox explanation
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Quantum Mechanics Concepts: The EPR Paradox explanation
Part 5 of a series: responds to key questions I am asked on my Video on the EPR Paradox.
Lecture 27
Quantum Mechanics Concepts: Energy Operators, the Hamiltonian and Schrodinger
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Quantum Mechanics Concepts: Energy Operators, the Hamiltonian and Schrodinger
Part 6 of a series: setting out the Energy operator, the Hamiltonian and deriving Schrodinger's Equation.
Lecture 28
Quantum Mechanics Concepts: The Harmonic Oscillator
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Quantum Mechanics Concepts: The Harmonic Oscillator
Part 7 of a series: explains how the ideas of Simple Harmonic Motion can be carried into Quantum Mechanics