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Quantum Information Processing
Erschienen in: Quantum Information Processing 11/2018

01.11.2018

Construction of quantum gates for concatenated Greenberger–Horne–Zeilinger-type logic qubit

verfasst von: Shang-Ping Ding, Lan Zhou, Wei Zhong, Yu-Bo Sheng

Erschienen in: Quantum Information Processing | Ausgabe 11/2018

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Abstract

Concatenated Greenberger–Horne–Zeilinger (C-GHZ) state is a kind of logic qubit which is robust in noisy environment. In this paper, we encode the C-GHZ state as the logic qubit and design two kinds of quantum gates for such logic qubit. The first kind is the single logic-qubit gate which contains the logic-qubit bit-flip gate and phase-flip gate. The second kind is the logic-qubit controlled-not (CNOT) gate. We exploit the single quantum gate for physical qubit, such as bit-flip gate and phase-flip gate, and two-qubit CNOT gate to realize the logic-qubit gate. We also calculated the success probability of such logic-qubit gate based on the imperfect physical quantum gate. This protocol may be useful for future quantum computation.
Vorheriger Artikel A novel quantum steganography algorithm based on LSBq for multi-wavelength quantum images
Nächster Artikel Demonstration of multiparty quantum clock synchronization

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Metadaten
Titel
Construction of quantum gates for concatenated Greenberger–Horne–Zeilinger-type logic qubit
verfasst von
Shang-Ping Ding
Lan Zhou
Wei Zhong
Yu-Bo Sheng
Publikationsdatum
01.11.2018
Verlag
Springer US
Erschienen in
Quantum Information Processing / Ausgabe 11/2018
Print ISSN: 1570-0755
Elektronische ISSN: 1573-1332
DOI
https://doi.org/10.1007/s11128-018-2077-5

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