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Results tagged with ghosts
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user 42982
Ghosts are unphysical states that arise when quantizing gauge theories. Do not use this tag for 'ghosts' in the paranormal sense.
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Ghost in quantum many body systems
How do we understand the ghosts in quantum many body systems? … Namely the Faddeev Popov ghosts in terms of many body quantum systems (for examples, from the energy band theory of lattice models, then with interactions, to have emergent gauge fields, etc)
The ghosts …
- 4,376
5
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BRST as gauge symmetry or global symmetry or the generalization (e.g. in Peskin and Schroede...
In Peskin and Schroeder (PS) Chap 16.4, such as after eq.16.45, in p.518, PS said:
"local gauge transformation parameter $\alpha$ is proportional to the ghost field and the anti-commuting continuous i …
- 4,376