An Efficient Verifiable Quantum Secret Sharing Scheme Via Quantum Walk Teleportation

Chen, Xiaoxiao; Lou, Xiaoping

doi:10.1007/s10773-022-05036-7

Cited by 4 publications

(1 citation statement)

References 25 publications

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“…Quantum entanglement performs an important function in quantum information processing (QIP) and constitutes an essential resource for quantum communication and quantum computing. It has a wide range of applications in quantum key distribution, [1][2][3][4][5][6] quantum secret sharing, [7][8][9][10][11][12] quantum secure direct communication, [13][14][15][16][17][18][19][20][21] and so on. Nowadays, hyperentanglement, which refers to a quantum system that is simultaneously entangled in multiple degrees of freedom (DoFs) of photon systems, [22][23][24][25][26] has been demonstrated and has attracted widespread attention due to its excellent properties, including its high capacity, low loss rate, fewer quantum resources, and loss decoherence characteristics.…”

Section: Introductionmentioning

confidence: 99%

Faithful and efficient hyperentanglement purification for spatial-polarization-time-bin photon system

Du¹,

Fan²,

Wu³

et al. 2023

Chinese Phys. B

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We present a faithful and efficient hyperentanglement purification protocol (hyper-EPP) for nonlocal two-photon systems in spatial-polarization-time-bin hyperentangled Bell states. As the single-photon detectors can detect and herald the undesirable properties caused by the side leakage and the finite coupling strength, the parity-check gates and SWAP gates of our hyper-EPP in the spatial, the polarization, and the time-bin modes degrees of freedom (DoFs) work faithfully. The qubit-flip errors on photon systems in three DoFs can be corrected effectively with the faithful parity-check gates and the photon pairs can reuse to distill high-fidelity ones by introducing the faithful SWAP gates, which greatly increases the efficiency of our hyper-EPP. Further, the maximal hyperentanglement can be obtained in principle by operating the hyper-EPP multiple rounds.

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