 ##  [Principal Connection (Gauge Connection)](/principal-connection-gauge-connection) 

  ##  [Principal Connection (Gauge Connection)](https://natural.quantumdictionary.io/principal-connection-gauge-connection-0) 

  

 [![Natural & Formal Sciences Dictionary](/sites/default/files/styles/large/public/2026-01/Natural%20%26%20Formal%20Sciences.png.webp?itok=2kCDRVQv)](/topic-specific-dictionaries/natural-formal-sciences)



**Natural &amp; Formal Sciences Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A Lie-algebra-valued one-form on a principal bundle that selects horizontal subspaces in each tangent space, defining parallel transport and inducing covariant derivatives on associated vector bundles; in physics it appears as the gauge potential.