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Results tagged with ghosts
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user 10456
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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Faddeev-Popov ghost propagator in canonical quantization
The solution to this problem comes from the sneaky fact (Kugo, 1978) that while the FP ghost field is hermitian $c^\dagger (x) = c(x)$, the anti-ghost field is anti-hermitian $\bar c^\dagger (x)=-\bar …
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