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Experimental demonstration of one-shot coherence distillation: High-dimensional state conversions

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posted on 2023-11-30, 19:12 authored by Shao-Jie Xiong, Zhe Sun, Xiaofeng Li, Qi-Ping Su, Zhengjun Xi, Li Yu, Jin-Shuang Jin, Jin-Ming Liu, Franco Nori, Chui-Ping Yang
We experimentally investigate problems of one-shot coherence distillation [Regula, Fang, Wang, and Adesso, Phys. Rev. Lett. 121, 010401 (2018)]. Based on a set of optical devices, we design a type of strictly incoherent operation (SIO), which is applicable in high-dimensional cases and can be applied to accomplish the transformations from higher-dimensional states to lower-dimensional states. Furthermore, a relatively complete process of the one-shot coherence distillation is experimentally demonstrated for three- and four-dimensional input states. Experimental data reveal an interesting result: higher coherence distillation rates (but defective) can be reached by tolerating a larger error. Our finding paves a fresh way in the experimental investigation of quantum coherence conversions through various incoherent operations.

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