This content has been downloaded from IOPscience. Please scroll down to see the full text. Download details: IP Address: 140.135.112.22 This content was downloaded on 19/10/2013 at 05:08 Please note that terms and conditions apply. Nekhoroshev type estimates for quantum propagators View the table of contents for this issue, or go to the journal homepage for more 1990 J. Phys. A: Math. Gen. 23 2915 (http://iopscience.iop.org/0305-4470/23/13/028) Home Search Collections Journals About Contact us My IOPscience