Quantum fidelity and relative entropy between unitary orbits
Quantum fidelity and relative entropy between unitary orbits
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DOI：
10.1088/1751-8113/47/5/055301
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发表时间：
2013-05
期刊：
影响因子：
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通讯作者：
Lin Zhang;S. Fei
中科院分区：
文献类型：
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作者：
Lin Zhang;S. Fei
保真度和相对熵是量子信息论中的两个重要量。我们研究了么正轨道下的量子保真度和相对熵。给出了两个么正轨道之间的最大和最小量子保真度和相对熵。讨论了它在量子计算和信息处理中的潜在应用。
Fidelity and relative entropy are two significant quantities in quantum information theory. We study the quantum fidelity and relative entropy under unitary orbits. The maximal and minimal quantum fidelity and relative entropy between two unitary orbits are explicitly derived. The potential applications in quantum computation and information processing are discussed.