Decoherence induced continuous pointer states

Details Decoherence induced continuous pointer states Decoherence induced continuous pointer states

2002-08-06

arxiv.org/abs/quant-ph/0208032v1

Physics

Quantum Physics

8 pages

Scientific paper

10.1103/PhysRevLett.90.010403

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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