From: Spudboy100@aol.com
Date: Sun May 04 2003 - 19:22:32 MDT
<A HREF="http://xxx.lanl.gov/PS_cache/quant-ph/pdf/0305/0305013.pdf">http://xxx.lanl.gov/PS_cache/quant-ph/pdf/0305/0305013.pdf>
Title: Universal control of quantum subspaces and subsystems
Authors: P. Zanardi (1,2), S. Lloyd (1) ((1)MIT, (2) Institute for Scientific
Interchange (ISI) Foundation)
Comments: 4 Pages RevTeX
We describe a broad dynamical-algebraic framework for analyzing the quantum
control properties of a set of naturally available interactions. General
conditions under which universal control is achieved over a set of
subspaces/subsystems are found. All known physical examples of universal
control on subspaces/systems are related to the framework developed here.
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