Masking quantum information is impossible

Abstract

Classical information encoded in composite quantum states can be completely hidden from the reduced subsystems and may be found only in the correlations. Can the same be true for quantum information? If quantum information is hidden from subsystems and spread over quantum correlation, we call it as masking of quantum information. We show that while this may still be true for some restricted sets of non-orthogonal quantum states, it is not possible for arbitrary quantum states. This result suggests that quantum qubit commitment -- a stronger version of the quantum bit commitment is not possible in general. Our findings may have potential applications in secret sharing and future quantum communication protocols.

Term 'spookifying' changed to 'masking'

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Cited by in corpus (49)

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• Deterministic versus probabilistic quantum information masking
• Photonic implementation of quantum information masking
• Impossibility of masking a set of quantum states of nonzero measure
• Extension of Noether's theorem in PT-symmetric systems and its experimental demonstration in an optical setup
• Quantum multipartite maskers vs quantum error-correcting codes
• The Min-entropy as a Resource for One-Shot Private State Transfer, Quantum Masking and State Transition
• Measurement-device-independent quantum-secret-sharing networks with linear Bell-state analysis
• Randomness for quantum channels:Genericity of catalysis and quantum advantage of uniformness
• Optimal approximations of available states and a triple uncertainty relation
• Quantum Information Capsule and Information Delocalization by Entanglement in Multiple-qubit Systems
• Constructions of $k$-uniform states from mixed orthogonal arrays
• Quantum Information Masking in Non-Hermitian Systems and Robustness
• Quantum information masking of an arbitrary qudit can be realized in multipartite lower dimensional systems
• Quantum one-time tables for unconditionally secure qubit-commitment
• Quantum cloning of steering
• Some no-go results in Quantum Thermodynamics
• Sequential Reattempt of Telecloning
• Quantum Information Masking of Hadamard Sets
• Characterizing the superposition of arbitrary random quantum states and a known quantum state
• Delocalized and Dynamical Catalytic Randomness and Information Flow
• The masking condition for quantum state in two-dimensional Hilbert space
• Quantum Information Capsule in Multiple-Qudit Systems and Continuous-Variable Systems
• Restrictions on shareability of classical correlations for random multipartite quantum states
• Quantum correlations for anonymous metrology
• Anyonic quantum multipartite maskers in the Kitaev model
• Multi-partite subspaces containing no locally inaccessible information
• Nonclassical resource for continuous variable telecloning with non-Gaussian advantage
• A simple formulation of no-cloning and no-hiding that admits efficient and robust verification
• An optical implementation of quantum bit commitment using infinite-dimensional systems
• No-masking theorem for observables
• A Mathematical Framework for Causally Structured Dilations and its Relation to Quantum Self-Testing
• Three Party Quantum Networks Created by Quantum Cloning
• Experimental Masking of Real Quantum States
• Masking quantum information encoded in pure and mixed states
• The concealment of accelerated information is possible
• Strong Chaos of Fast Scrambling Yields Order: Emergence of Decoupled Quantum Information Capsules
• Detection of quantum information masking via machine learning
• Entanglement swapping under quantum information masking
• Comment on "Masking quantum information is impossible"
• Quantum Channel Masking
• Entanglement is indispensable for masking arbitrary set of quantum states
• Masking quantum information into a tripartite syste