Gram matrices of quantum channels via quantum Fisher information with applications to decoherence and uncertainty
Gram matrices of quantum channels via quantum Fisher information with applications to decoherence and uncertainty
复制标题
通过量子费希尔信息的量子通道的格拉姆矩阵及其在退相干和不确定性中的应用
DOI:
10.1007/s41884-023-00096-y
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发表时间:
2023-01
期刊:
影响因子:
--
通讯作者:
Yuan Sun
中科院分区:
文献类型:
--
作者:
Shunlong Luo;Yuan Sun
By use of Gram matrices associated with various versions of quantum Fisher information (related to monotone metrics and metric-adjusted skew information), we study information and geometry of quantum channels by introducing several quantities involving commutators and anticommutators for operators and quantum states. We reveal their basic features and evaluate these quantities for some important channels. As applications, we employ Gram matrices to quantify decoherence of quantum channels caused on quantum states, and establish some uncertainty relations, which refine the conventional Heisenberg uncertainty relations involving variance.
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发表时间:
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