Wick rotation changes the spacetime symmetries of a quantum field theory, changing between
The Lorentz group, by which I’ll mean either $SO(3,1)$ or $SL(2,\mathbf C)$, the double cover of the time orientation-preserving subgroup of $SO(3,1)$. The four-dimensional Euclidean signature rotation group, by which I’ll mean either $SO(4)$ or its double cover $Spin(4)=SU(2)\time...Subscribe in seconds and receive Not Even Wrong's news feed updates in your inbox, on your phone or even read them from your own news page here on follow.it.
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