FeynCalc manual (development version)

PauliIndexNames

PauliIndexNames is an option for FCFAConvert, FCCanonicalizeDummyIndices and other functions. It renames the generic dummy Pauli indices to the indices in the supplied list.

See also

Overview, FCFAConvert, FCCanonicalizeDummyIndices, DiracIndexNames, LorentzIndexNames.

Examples

PCHN[CSI[a], i, j] PCHN[CSI[b], j, k] 
 
FCCanonicalizeDummyIndices[%]

(σ‾a)ij(σ‾b)jk\left(\overline{\sigma }^a\right){}_{ij} \left(\overline{\sigma }^b\right){}_{jk}

(σ‾a)iFCGV(pi251)(σ‾b)FCGV(pi251)k\left(\overline{\sigma }^a\right){}_{i\text{FCGV}(\text{pi251})} \left(\overline{\sigma }^b\right){}_{\text{FCGV}(\text{pi251})k}

PCHN[CSI[a], i, j] PCHN[CSI[b], j, k] 
 
FCCanonicalizeDummyIndices[%, PauliIndexNames -> {l}]

(σ‾a)ij(σ‾b)jk\left(\overline{\sigma }^a\right){}_{ij} \left(\overline{\sigma }^b\right){}_{jk}

(σ‾a)il(σ‾b)lk\left(\overline{\sigma }^a\right){}_{il} \left(\overline{\sigma }^b\right){}_{lk}