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.
© 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