This approach demonstrates 9-dimensional quantum steering in qudit sources, indicating its robustness and potential applications.
Here we develop a scheme and experimentally demonstrate the first multi-dimensional quantum steering using discretized time-frequency bases. At the qudit source, we extract a lower bound of steering robustness of 8.9 ± 0.1 that demonstrates a 9-dimensional quantum steering, after the transportation, a 7-dimensional quantum steering is preserved.
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Chang et al. (2025) studied this question.
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