Time-reversal is a confusing topic, both because it involves innately complex issues, and because scientists are not always consistent about the terminology the

Time-reversal is a confusing topic, both because it involves innately complex issues, and because scientists are not always consistent about the terminology they use. This article does a good job untying the Gordian knot: Jacobs, Tim, and Christian Maes. "Reversibility and irreversibility within the quantum formalism." arXiv preprint quant-ph/0508041 (2005). http://arxiv.org/pdf/quant-ph/0508041v1.pdf http://arxiv.org/pdf/quant-ph/0508041v1.pdf