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arXiv 2602.07112quant-phhep-th
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共形场论中的纠缠提取

Entanglement harvesting in conformal field theory

Perimeter Institute for Theoretical Physics(Perimeter理论物理研究所);University of Waterloo(滑铁卢大学)

Kelly Wurtz, Caroline Lima, Robert C. Myers, Eduardo Martín-Martínez

AI总结:

本文研究了共形场论中纠缠提取,扩展了标准协议至相互作用理论和任意维度,并揭示了AdS/CFT中纠缠分离机制。

摘要:

我们研究了在一般$d$维共形场论中使用点状Unruh-DeWitt探测器耦合到标量初级算符进行的纠缠提取。这将标准提取协议扩展到相互作用共形理论和任意空间维度。我们发现增加算符标度维度会抑制负性及互信息,反映相关性的更快衰减。对于反德西特/反里奇托尔曼(AdS/CFT)理论,我们展示了 bulk 有效场论能够实现场提取和通信介导的纠缠分离。我们还推导了渐近的闭式近似,其结果与数值结果一致。

英文摘要:

We study entanglement harvesting in general $d$-dimensional conformal field theories using pointlike Unruh-DeWitt detectors coupled to scalar primary operators. This extends standard harvesting protocols beyond free fields to interacting conformal theories and arbitrary spatial dimensions. We find that increasing the operator scaling dimension suppresses both negativity and mutual information, reflecting the faster decay of correlations. For holographic CFTs, we show that bulk effective field theory enables a separation between field-harvested and communication-mediated entanglement. We also derive asymptotic, closed-form approximations that agree well with numerical results.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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