Quantum information masking basing on quantum teleportation

• URL: http://arxiv.org/abs/2103.03126v1
• Date: Thu, 4 Mar 2021 15:53:34 GMT
• Title: Quantum information masking basing on quantum teleportation
• Authors: Wei-Min Shang and Fu-Lin Zhang and Jing-Ling Chen
• Abstract summary: No-masking theorem says that masking quantum information is impossible in a bipartite scenario. We present two four-partite maskers and a tripartite masker. The information can be extracted naturally in their reverse processes.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: 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.

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