Fault Tolerant Controlled Quantum Dialogue with Logical Brown States Against Collective Noise

Chang, Li-Wei; Zhang, Yuqing; Tian, Xiao-xiong; Qian, Yuhua; Bai, Zeng-liang; Liu, Yang

doi:10.1007/s10773-020-04490-5

Cited by 4 publications

(1 citation statement)

References 52 publications

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“…The above information is regarded as a strong assumption in AQD protocols and is typically not factored into the efficiency and security calculations. Controlled quantum dialogue (CQD) protocol delegates the authentication to a competent third party [28][29][30][31]. The actual content of the exchange messages will be recovered only with the permission of the third-party controller.…”

Section: Introductionmentioning

confidence: 99%

Efficient fault-tolerant quantum dialogue protocols using a quantum reordering circuit of EPR pairs

Lin

Chang

2023

Phys. Scr.

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This study proposes two efficient fault-tolerant quantum dialogue (QD) protocols that are robust against the collective-dephasing and collective-rotation noises, respectively. In the proposed protocol, the message carriers are decoherence-free quantum states that are resistant to the corresponding collective noise, provided that all quantum photon pairs of a transmitted unit remain within the same time window. These quantum states and their combinations are used to compose the decoy photon pairs to ensure the security of the transmission. An observation on the Bell measurement has allowed an EPR pair as a message carrier to require only one of its photons for protection. That is, the measurement of one single photon in an EPR pair will gain no information of its actual Bell state. This property has effectively reduced the number of decoy photons in the quantum transmission. Since the photons used in the message carriers are particles of EPR pairs, the proposed two fault-tolerant QD protocols required only half of the decoy photons to ensure the same level of security. In the transmission, one photon of each EPR pair is separated using a reordering mechanism and a quantum logic circuit is designed and implemented to demonstrate the concept in practice. The reduction of decoy photons has significantly improved the qubit efficiency of the proposed QD protocols compared with other relevant existing works. Furthermore, the proposed schemes also have no information leakage problem.

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Section: Introductionmentioning

confidence: 99%

Efficient fault-tolerant quantum dialogue protocols using a quantum reordering circuit of EPR pairs

Lin

Chang

2023

Phys. Scr.

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Efficient fault-tolerant quantum dialogue protocols based on dictionary encoding without decoy photons

Chang,

Lin

2024

Quantum Inf Process

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Optimizing the scheme of bidirectional controlled quantum teleportation with a genuine five-qubit entangled state

Yuan

Zhang

2020

Mod. Phys. Lett. A

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A bidirectional controlled quantum teleportation (BCQT) scheme was proposed by Yan Chen [Int. J. Theor. Phys. 53, 1454 (2014)] with a genuine five-qubit entangled state as quantum channel. In the scheme two remote participants have to perform some two-qubit joint operations to accomplish the BCQT task. Such joint operations are nonlocal and usually regarded as serious faults in some sense. To overcome them, in this paper we put forward an optimized version. Our scheme has the distinct advantages of degrading the necessary-operation complexity (i.e., both intensity and difficulty) and consuming fewer classical resources as well as owing higher intrinsic efficiency in contrast to Chen’s. Besides, it is feasible in experiment and applicable in the intending quantum network.

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Fault Tolerant Controlled Quantum Dialogue with Logical Brown States Against Collective Noise

Cited by 4 publications

References 52 publications

Efficient fault-tolerant quantum dialogue protocols using a quantum reordering circuit of EPR pairs

Efficient fault-tolerant quantum dialogue protocols using a quantum reordering circuit of EPR pairs

Efficient fault-tolerant quantum dialogue protocols based on dictionary encoding without decoy photons

Optimizing the scheme of bidirectional controlled quantum teleportation with a genuine five-qubit entangled state

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