Abstract
We disprove the Vafa-Witten theorem on the impossibility of spontaneously breaking parity in vectorlike gauge field theories, identifying a mechanism driven by quantum fluctuations. With the introduction of a meromorphic lattice formulation, defined over 5 dimensions, we demonstrate that the minima of the free energy can be distinct from the maxima of the partition function. By identifying and evaluating a suitable contour for the partition function the asymptotic behavior of the complex action is shown to be nonoscillatory.
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