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In various application domains, recommender systems explicitly or implicitly act as virtual advice givers. They are not only used to filter large item sets or point users to unknown but relevant items, their recommendations can also help users to make a decision given a limited choice set. Such a system is usually considered effective if the users adopt the(More)
Here we study the optimum efficiency of the excitation of maximum quantum (MaxQ) coherence using analytical and numerical methods based on optimal control theory. The theoretical limit of the achievable MaxQ amplitude and the minimum time to achieve this limit are explored for a set of model systems consisting of up to five coupled spins. In addition to(More)
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