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Quantum Information Processing

Hierarchically controlled remote preparation of an arbitrary single-qubit state by using a four-qubit entangled state

  • 01-05-2018
Published in:
Authors
Peng-Cheng Ma
Gui-Bin Chen
Xiao-Wei Li
You-Bang Zhan
Published in
Quantum Information Processing | Issue 5/2018

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Abstract

In this paper, we present a scheme for Hierarchically controlled remote preparation of an arbitrary single-qubit state via a four-qubit \(|\chi \rangle \) state as the quantum channel. In this scheme, a sender wishes to help three agents to remotely prepare a quantum state, respectively. The three agents are divided into two grades, that is, an agent is in the upper grade and other two agents are in the lower grade. It is shown that the agent of the upper grade only needs the assistance of any one of the other two agents for recovering the sender’s original state, while an agent of the lower grade needs the collaboration of all the other two agents. In other words, the agents of two grades have different authorities to recover sender’s original state.

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previous article Quantum demultiplexer of quantum parameter-estimation information in quantum networks
next article Generalized Choi states and 2-distillability of quantum states
Title
Hierarchically controlled remote preparation of an arbitrary single-qubit state by using a four-qubit entangled state
Authors
Peng-Cheng Ma
Gui-Bin Chen
Xiao-Wei Li
You-Bang Zhan
Publication date
01-05-2018
Publisher
Springer US
Published in
Quantum Information Processing / Issue 5/2018
Print ISSN: 1570-0755
Electronic ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-018-1875-0
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