Covariance Systems on the Projective Line

N. Pinamonti; M. Toller

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Covariance Systems on the Projective Line

N. Pinamonti·M. Toller

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Abstract

We study the positive-operator-valued measures on the projective real line covariant with respect to the projective group, assuming that the energy is a positive operator. This problem is similar to the more complicated problem of finding the positive-operator-valued measures on the compactified Minkowski space-time covariant with respect to the conformal group. It also describes a time-of-arrival observable for a free particle covariant with respect to linear canonical transformations.

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N. Pinamonti, M. Toller. 2000-01-29. Covariance Systems on the Projective Line. https://arxiv.org/abs/quant-ph/0001109

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