Quantum state sharing of an arbitrary three-qubit state by using three sets of W-class states

Chen, Xiang; Jiang, Min; Chen, Xiaoping; Li, Hui

doi:10.1007/s11128-013-0532-x

Cited by 15 publications

(1 citation statement)

References 48 publications

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“…From this point of view, QIS can be used to complete the task of controlled quantum teleportation (CQT) [ 4 ] in which an unknown state is teleported from a sender to a spatially separated receiver under the supervision of one or more controllers. Owing to its potential applications, e.g., creating joint accounts containing quantum money [ 5 ] and secure distributed quantum computation [ 6 ], QIS has been intensively studied [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ] in the past two decades. For example, Luo et al [ 11 ] investigated the application of

state for QIS of an arbitrary three-qubit state.…”

Section: Introductionmentioning

confidence: 99%

Probabilistic Hierarchical Quantum Information Splitting of Arbitrary Multi-Qubit States

Tang

2022

Entropy

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By utilizing the non-maximally entangled four-qubit cluster states as the quantum channel, we first propose a hierarchical quantum information splitting scheme of arbitrary three-qubit states among three agents with a certain probability. Then we generalize the scheme to arbitrary multi-qubit states. Hierarchy is reflected on the different abilities of agents to restore the target state. The high-grade agent only needs the help of one low-grade agent, while the low-grade agent requires all the other agents’ assistance. The designated receiver performs positive operator-valued measurement (POVM) which is elaborately constructed with the aid of Hadamard matrix. It is worth mentioning that a general expression of recovery operation is derived to disclose the relationship with measurement outcomes. Moreover, the scheme is extended to multiple agents by means of the symmetry of cluster states.

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