Preprint 61/2019

Quantum information masking: deterministic versus probabilistic

Bo Li, Shuhan Jiang, Xiao-Bin Liang, Xianqing Li-Jost, Heng Fan, and Shao-Ming Fei

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Submission date: 30. Jul. 2019
published in: Physical review / A, 99 (2019) 5, art-no. 052343 
DOI number (of the published article): 10.1103/PhysRevA.99.052343
with the following different title: Deterministic versus probabilistic quantum information masking

We investigate quantum information masking for arbitrary dimensional quantum states. We show that mutually orthogonal quantum states can always be served for deterministic masking of quantum information. We further construct a probabilistic masking machine for linearly independent states. It is shown that a set of d-dimensional states, {|a1A,|a2A,,|anA}, n d, can be probabilistically masked by a general unitary-reduction operation if they are linearly independent. The maximal successful probability of probabilistic masking is analyzed and derived for the case of two initial states.

02.07.2022, 02:19