Quantum information masking basing on quantum teleportation
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arXiv
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| Format: | Preprint |
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2021
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| _version_ | 1866909459161284608 |
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| author | Shang, Wei-Min Zhang, Fu-Lin Chen, Jing-Ling |
| author_facet | Shang, Wei-Min Zhang, Fu-Lin Chen, Jing-Ling |
| contents | The no-masking theorem says that masking quantum information is impossible in a bipartite scenario. However, there exist schemes to mask quantum states in multipartite systems. In this work, we show that, the joint measurement in the teleportation is really a masking process, when the apparatus is regarded as a quantum participant in the whole system. Based on the view, we present two four-partite maskers and a tripartite masker. One of the former provides a generalization in arbitrary dimension of the four-qubit scheme given by Li and Wang [Phys. Rev. A 98, 062306 (2018)], and the latter is precisely their tripartite scheme. The occupation probabilities and coherence of quantum states are masked in two steps of our schemes. And the information can be extracted naturally in their reverse processes. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2103_03126 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | Quantum information masking basing on quantum teleportation Shang, Wei-Min Zhang, Fu-Lin Chen, Jing-Ling Quantum Physics The no-masking theorem says that masking quantum information is impossible in a bipartite scenario. However, there exist schemes to mask quantum states in multipartite systems. In this work, we show that, the joint measurement in the teleportation is really a masking process, when the apparatus is regarded as a quantum participant in the whole system. Based on the view, we present two four-partite maskers and a tripartite masker. One of the former provides a generalization in arbitrary dimension of the four-qubit scheme given by Li and Wang [Phys. Rev. A 98, 062306 (2018)], and the latter is precisely their tripartite scheme. The occupation probabilities and coherence of quantum states are masked in two steps of our schemes. And the information can be extracted naturally in their reverse processes. |
| title | Quantum information masking basing on quantum teleportation |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2103.03126 |