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arXiv · 1104.3818

Operator ordering and causality

L. I. Plimak·S. T. Stenholm
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Abstract

It is shown that causality violations [M. de Haan, Physica 132A, 375, 397 (1985)], emerging when the conventional definition of the time-normal operator ordering [P.L.Kelley and W.H.Kleiner, Phys.Rev. 136, A316 (1964)] is taken outside the rotating wave approximation, disappear when the amended definition [L.P. and S.S., Annals of Physics, 323, 1989 (2008)] of this ordering is used.

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L. I. Plimak, S. T. Stenholm. 2011-04-20. Operator ordering and causality. https://doi.org/10.1088/0031-8949%2F2012%2Ft147%2F014026

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