Wednesday, October 12, 2016

$CPT$ and relativity

with earlier CQWs and the idea that in relativity there's no fundamental difference between space and time coordinates (apart from the signature of the metric), could you formulate a combined $PT$-invariance of the field equation, where $\vec{x}\rightarrow-\vec{x}$ and $t\rightarrow-t$? what's the relation to charges of the gravitational field (i.e. masses) and a combined $CPT$-symmetry?

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