To solve the problem of hiding quantum information in simplified subsystems,Modi et al.[1]introduced the concept of quantum masking.Quantum masking is the encoding of quantum information by composite quantum states in such a way that the quantum information is hidden to the subsystem and spreads to the correlation of the composite systems.The concept of quantum masking was developed along with a new quantum impossibility theorem,the quantum no-masking theorem.The question of whether a quantum state can be masked has been studied by many people from the perspective of the types of quantum states,the number of masking participants,and error correction codes.Others have studied the relationships between maskable quantum states,the deterministic and probabilistic masking of quantum states,and the problem of probabilistic masking.Quantum masking techniques have been shown to outperform previous strategies in quantum bit commitment,quantum multi-party secret sharing,and so on.
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