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arXiv · 1808.02223

Self-testing using only marginal information

Xinhui Li·Yu Cai·Yunguang Han·Qiaoyan Wen·Valerio Scarani
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Abstract

The partial states of a multipartite quantum state may carry a lot of information: in some cases, they determine the global state uniquely. This result is known for tomographic information, that is for fully characterized measurements. We extend it to the device-independent framework by exhibiting sets of two-party correlations that self-test pure three-qubit states.

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Xinhui Li, Yu Cai, Yunguang Han, Qiaoyan Wen, Valerio Scarani. 2018-08-07. Self-testing using only marginal information. https://doi.org/10.1103/physreva.98.052331

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