Gauge Theory 
Gauge Theory
by Stanford / Leonard Susskind
Video Lecture 8 of 8
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Views: 6,514
Date Added: September 14, 2008

Lecture Description

A global gauge transformation has the same phase shift everywhere whereas a local gauge transformation has a phase shift as a function of location.

Benjamin Franklin fixed the convention for positive and negative charge and the direction of current flow.

Lorentz invariance of the equation of motion implies that the Lagrangian must be a scalar. Gauge invariance of the Lagrangian implies conservation of charge.

The Lorentz force is the force of the electromagnetic field upon a charge.

No magnetic monopoles have been observed although some theories allow for them. A field approximating a magnetic monopole can be constructed using a very long solenoid. 

Course Index

Course Description

This Stanford Continuing Studies course is the second of a six-quarter sequence of classes exploring the essential theoretical foundations of modern physics. The topics covered in this course focus on quantum mechanics. The course is taught by Leonard Susskind, the Felix Bloch Professor of Physics at Stanford University.

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