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Decoherence induced continuous pointer states

Ph. Blanchard·R. Olkiewicz
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Abstract

We investigate the reduced dynamics in the Markovian approximation of an infinite quantum spin system linearly coupled to a phonon field at positive temperature. The achieved diagonalization leads to a selection of the continuous family of pointer states corresponding to a configuration space of the one-dimensional Ising model. Such a family provides a mathematical description of an apparatus with continuous readings.

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Ph. Blanchard, R. Olkiewicz. 2002-08-06. Decoherence induced continuous pointer states. https://doi.org/10.1103/physrevlett.90.010403

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