nLab
coupling constants

Contents

Idea

In the Lagrangian of a prequantum field theory the those terms that involve various fields describe the coupling or interaction of these fields with each other. Hence the prefactors of these terms encode the strength of this coupling, and hence are called coupling constants.

Example

Created on June 10, 2013 at 15:08:13. See the history of this page for a list of all contributions to it.