advanced_notions:observable

This shows you the differences between two versions of the page.

Both sides previous revision Previous revision Next revision | Previous revision | ||

advanced_notions:observable [2017/12/04 08:01] 127.0.0.1 external edit |
advanced_notions:observable [2018/01/02 12:13] (current) |
||
---|---|---|---|

Line 23: | Line 23: | ||

The simplest example of an observable in gauge theory are Wilson loops. | The simplest example of an observable in gauge theory are Wilson loops. | ||

- | Take note that this procedure of modding out $\mathcal G$ from $\mathcal A$ is what leads to [[theories:quantum_theory:quantum_field_theory:ghosts|Ghosts]]. To do this properly requires to make use of the [[advanced_tools:gauge_symmetry:brst|BRST]] formalism. | + | Take note that this procedure of modding out $\mathcal G$ from $\mathcal A$ is what leads to [[advanced_notions:quantum_field_theory:ghosts|Ghosts]]. To do this properly requires to make use of the [[advanced_tools:gauge_symmetry:brst|BRST]] formalism. |

(Source: Baez, Munian; Gauge Fields, Knots and Gravity, page 342) | (Source: Baez, Munian; Gauge Fields, Knots and Gravity, page 342) | ||

advanced_notions/observable.txt · Last modified: 2018/01/02 12:13 (external edit)

Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution-Share Alike 4.0 International