Path-ordering
id:
path-ordering-183-14996634
title:
Path-ordering
text:
In theoretical physics, path-ordering is the procedure that orders a product of operators according to the value of a chosen parameter:
- P { O 1 O 2 ⋯ O N } ≡ O p 1 O p 2 ⋯ O p N. Here p is a permutation that orders the parameters by value:
- p : { 1, 2, …, N } → { 1, 2, …, N }
- σ p 1 ≤ σ p 2 ≤ ⋯ ≤ σ p N. For example:
- P { O 1 O 2 O 3 O 4 } = O 4 O 2 O 3 O 1. In many fields of physics, the most common type of path-ordering is time-ordering, which is discussed in detail below.
brand slug:
wiki
category slug:
encyclopedia
description:
Procedure of ordering a product operators
original url:
https://en.wikipedia.org/wiki/Path-ordering
date created:
2004-06-05T21:13:36Z
date modified:
2024-09-07T02:44:55Z
main entity:
{"identifier":"Q3885125","url":"https://www.wikidata.org/entity/Q3885125"}
image:
fields total:
13
integrity:
15