Volume 32 Issue 1
May. 2023
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JOURNAL OF MECHANICAL ENGINEERING  > 2023  >  32(1): 010304.
Zhou Qing-Yun, Fan Xiao-Gang, Zhao Fa, Wang Dong, Ye Liu. Transformation relation between coherence and entanglement for two-qubit states[J]. JOURNAL OF MECHANICAL ENGINEERING, 2023, 32(1): 010304. doi: 10.1088/1674-1056/ac7454
Citation: Zhou Qing-Yun, Fan Xiao-Gang, Zhao Fa, Wang Dong, Ye Liu. Transformation relation between coherence and entanglement for two-qubit states[J]. JOURNAL OF MECHANICAL ENGINEERING, 2023, 32(1): 010304. doi: 10.1088/1674-1056/ac7454
shu

Transformation relation between coherence and entanglement for two-qubit states

doi: 10.1088/1674-1056/ac7454

  • Hefei 230601

  • Received Date: 30 Mar 2022
    Available Online: 31 May 2023
  • Issue Publish Date: 01 Jan 2023
    Abstract
  • Entanglement and coherence are two important resources in quantum information theory. A question naturally arises: Is there some connection between them? We prove that the entanglement of formation and the first-order coherence of two-qubit states satisfy an inequality relation. Two-qubit pure state reaches the upper bound of this inequality. A large number of randomly generated states are used to intuitively verify the complementarity between the entanglement of formation and the first-order coherence. We give the maximum accessible coherence of two-qubit states. Our research results will provide a reliable theoretical basis for conversion of the two quantum resources.

     

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