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Quantum Information Processing
Erschienen in: Quantum Information Processing 11/2013

01.11.2013

Robust preparation of four-qubit decoherence-free states for superconducting quantum interference devices against collective amplitude damping

verfasst von: Xiao-Qiang Shao, Tai-Yu Zheng, Shou Zhang

Erschienen in: Quantum Information Processing | Ausgabe 11/2013

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Abstract

Based on the quantum Zeno dynamics, we present an approach for deterministic preparation of arbitrary four-qubit decoherence-free state of superconducting quantum interference devices with respective to collective amplitude damping in a decoherence-free way, namely, not only the form of the target state is free of decoherence, but also the whole process for preparation. The operation is fast and convenient since we only need to manipulate three weak laser pulses sequentially. Other decoherence effects such as cavity decay and the spontaneous emission of qubits are also taken into account in virtue of master equation, and the strictly numerical simulation signifies the final fidelity is high corresponding to the current experimental technology.
Vorheriger Artikel Quantum teleportation and dense coding via topological basis
Nächster Artikel A new sure-success generalization of Grover iteration and its application to weight decision problem of Boolean functions

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Metadaten
Titel
Robust preparation of four-qubit decoherence-free states for superconducting quantum interference devices against collective amplitude damping
verfasst von
Xiao-Qiang Shao
Tai-Yu Zheng
Shou Zhang
Publikationsdatum
01.11.2013
Verlag
Springer US
Erschienen in
Quantum Information Processing / Ausgabe 11/2013
Print ISSN: 1570-0755
Elektronische ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-013-0604-y

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