胡文文,蒋社想,游世勋,等. 振幅阻尼信道中Bell态和GHZ态共享及其Qiskit仿真[J]. 南昌航空大学学报(自然科学版),2026,40(4):27-37. doi: 10.3969/j.issn.2096-8566.2026.04.004
引用本文: 胡文文,蒋社想,游世勋,等. 振幅阻尼信道中Bell态和GHZ态共享及其Qiskit仿真[J]. 南昌航空大学学报(自然科学版),2026,40(4):27-37. doi: 10.3969/j.issn.2096-8566.2026.04.004
Hu Wenwen,Jiang Shexiang,You Shixun,et al. Sharing of Bell states and GHZ states in amplitude damping channel and its Qiskit simulation[J]. Journal of Nanchang Hangkong University (Natural Sciences),2026,40(4):27-37. doi: 10.3969/j.issn.2096-8566.2026.04.004
Citation: Hu Wenwen,Jiang Shexiang,You Shixun,et al. Sharing of Bell states and GHZ states in amplitude damping channel and its Qiskit simulation[J]. Journal of Nanchang Hangkong University (Natural Sciences),2026,40(4):27-37. doi: 10.3969/j.issn.2096-8566.2026.04.004

振幅阻尼信道中Bell态和GHZ态共享及其Qiskit仿真

Sharing of Bell States and GHZ States in Amplitude Damping Channel and Its Qiskit Simulation

  • 摘要: 为抑制信道中振幅阻尼噪声对最大纠缠态分发的退相干效应,实现量子态隐形传送和量子态多方共享方案中未知量子态的保真传输,本文提出一种纠缠补偿方法。该方法在振幅阻尼信道中循环传输最大纠缠Bell态中的单量子比特,并执行受控非门、特定的联合酉操作及单量子比特测量操作,最终完成量子系统的纠缠补偿。在此基础上,本文提出振幅阻尼信道中最大纠缠Bell态和GHZ态的共享方案,并基于量子计算框架Qiskit进行仿真验证。通过公式推导证明,所提方法能够在振幅阻尼信道中实现4种最大纠缠Bell态以及4种最大纠缠GHZ态的共享。基于Qiskit平台的仿真分析结果表明,随着信道中振幅阻尼强度的增加及参与方数量的增加,该方案的成功率逐渐降低。

     

    Abstract: To suppress the decoherence effects caused by amplitude damping noise in the channel on the distribution of maximally entangled states, and to achieve faithful transmission of unknown quantum states in quantum teleportation and multi-party quantum state sharing schemes, this paper proposes an entanglement compensation method. This method involves cyclically transmitting a single qubit from the maximally entangled Bell state through an amplitude damping channel, performing controlled-NOT gates, specific joint unitary operations, and single-qubit measurements, ultimately achieving entanglement compensation for the quantum system. Building on this, this paper proposes a scheme for sharing maximally entangled Bell and GHZ states in the amplitude damping channel, with verification by Qiskit simulations. Mathematical derivations demonstrate that the proposed method can enable the sharing of four maximally entangled Bell states and four maximally entangled GHZ states in the amplitude damping channel. Simulation analysis results based on the Qiskit platform indicate that the success rate of this scheme gradually decreases as the amplitude damping strength in the channel increases and the number of participants grows.

     

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