Abstract
It is shown that physical positivity holds in Wilson's lattice gauge theories, i.e. transition probabilities between gauge invariant states are non-negative and the quantum mechanical Hamiltonian has real eigenvalues only.
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Communicated by A. Jaffe
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Lüscher, M. Construction of a selfadjoint, strictly positive transfer matrix for Euclidean lattice gauge theories. Commun.Math. Phys. 54, 283–292 (1977). https://doi.org/10.1007/BF01614090
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DOI: https://doi.org/10.1007/BF01614090