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Creators/Authors contains: "Cui, Jin"

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  1. ; ; ; ; ; ; ; ; ; ; et al (, npj Quantum Information)
    Abstract Self-testing allows one to characterise quantum systems under minimal assumptions. However, existing schemes rely on quantum nonlocality and cannot be applied to systems that are not entangled. Here, we introduce a robust method that achieves self-testing of individual systems by taking advantage of contextuality. The scheme is based on the simplest contextuality witness for the simplest contextual quantum system—the Klyachko-Can-Binicioğlu-Shumovsky inequality for the qutrit. We establish a lower bound on the fidelity of the state and the measurements as a function of the value of the witness under a pragmatic assumption on the measurements. We apply the method in an experiment on a single trapped40Ca+using randomly chosen measurements and perfect detection efficiency. Using the observed statistics, we obtain an experimental demonstration of self-testing of a single quantum system. 
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  2. ; ; ; ; (, Applied Physics Express)
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  3. ; ; ; (, International Journal of Heat and Mass Transfer)
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  4. ; ; ; ; (, Journal of Micromechanics and Microengineering)
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  5. ; ; ; ; ; ; ; ; ; ; et al (, Neuron)
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