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Results tagged with ghosts
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user 170721
Ghosts are unphysical states that arise when quantizing gauge theories. Do not use this tag for 'ghosts' in the paranormal sense.
6
votes
2
answers
417
views
Introduce Ghost Field to eliminate unphysical degrees of freedom in case of Photon Field
In wikipedia's article about ghost fields is stated the following which requires a bit more clarification:
An example of the need of ghost fields is the photon, which is usually described by a four c …
- 1,555
5
votes
4
answers
546
views
Gauge ghosts & unphysical states in gauge theory
I have a general question about a statement from Wikipedia about ghost states as occuring in gauge theory:
"In the terminology of quantum field theory, a ghost, ghost field, or gauge ghost is an …
- 1,555