Classical Robustness of Quantum Unravellings
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We introduce three measures which quantify the degree to which quantum systems possess the robustness exhibited by classical systems when subjected to continuous observation. Using these we show that for a fixed environmental interaction the level of robustness depends on the measurement strategy, or unravelling, and that no single strategy is maximally robust in all ways.
Copyright 2005 EDP Sciences. The attached file is reproduced here in accordance with the copyright policy of the publisher. The original publication is available at www.epljournal.org