The masking condition for quantum state in two-dimensional Hilbert space

• URL: http://arxiv.org/abs/2111.05574v1
• Date: Wed, 10 Nov 2021 08:50:47 GMT
• Title: The masking condition for quantum state in two-dimensional Hilbert space
• Authors: Mei-Yi Wang (1), Su-Juan Zhang (1), Chen-Ming Bai (1), Lu Liu (1) ((1) Department of Mathematics and Physics, Shijiazhuang Tiedao University, Shijiazhuang, China)
• Abstract summary: We present a system of equations as the condition of quantum information masking. It is shown that quantum information contained in a single qubit state can be masked, if and only if the coefficients of quantum state satisfy the given system of equations.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: This paper focuses on quantum information masking for quantum state in two-dimensional Hilbert space. We present a system of equations as the condition of quantum information masking. It is shown that quantum information contained in a single qubit state can be masked, if and only if the coefficients of quantum state satisfy the given system of equations. By observing the characteristics of non-orthogonal maskable quantum states, we obtain a related conclusion, namely, if two non-orthogonal two-qubit quantum states can mask a single qubit state, they have the same number of terms and the same basis. Finally, for maskable orthogonal quantum states, we analyze two special examples and give their images for an intuitive description.

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