Secure Quantum Communication Scheme for Six-Qubit Decoherence-Free States

Chih Lun Tsai, Tzone-Lih Hwang

研究成果: Article同行評審

1 引文 斯高帕斯(Scopus)

摘要

Noise is currently unavoidable in quantum communication environments. Eavesdroppers can exploit this issue by disguising themselves as channel noise to avoid detection during eavesdropping checks performed by legitimate communicants. This paper first proposes a new coding function comprising eight unitary operations for two orthogonal bases for six-qubit decoherence-free states. Subsequently, based on the coding function, the first deterministic secure quantum communication (DSQC) scheme for quantum channels with collective noise is developed. The developed DSQC is robust against both collective-dephasing noise and collective-rotation noise Senders can choose one of six-qubit decoherence-free states to encode their two-bit message, and receivers simply conduct Bell measurement to obtain the message. Analyses conducted verify that the proposed scheme is both secure and robust.

原文English
頁(從 - 到)3808-3818
頁數11
期刊International Journal of Theoretical Physics
57
發行號12
DOIs
出版狀態Published - 2018 12月 1

All Science Journal Classification (ASJC) codes

  • 數學(全部)
  • 物理與天文學(雜項)

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