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arXiv 2301.09669hep-thquant-ph
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波泛函的精确重整化导出连续 MERA

Exact Renormalization of Wave Functionals yields Continuous MERA

Samuel Goldman, Nima Lashkari, Robert G. Leigh, Mudassir Moosa

AI总结:

本文将广义精确重整化群方案适配到波泛函流动,通过允许修改色散关系构造出包含高斯连续多尺度重整化拟设的连续酉网络,并证明 cMERA 可由路径积分无关性这一微观原理导出,为超越自由场 regime 研究连续纠缠重整化提供了新途径。

摘要:

精确重整化群(ERG)是理解场论形式性质的有力工具。通过将广义 ERG 方案适配到波泛函的流动,我们获得了一大类连续酉网络,其中一个特例包含一类高斯连续多尺度重整化拟设(cMERA)。这些广义波泛函 ERG 方案的新特点是允许修改色散关系,这极大地改变了紫外态的纠缠结构。通过我们的构造,我们证明了 cMERA 可以从一个更基本的“微观”原理导出,该原理相当于通常的路径积分无关性 RG 原理,并适当地适配到场论的量子态。建立这样一个原理可能为探索自由场 regime 之外的 cMERA 提供前进的路径,并为在连续统中内在地理解纠缠重整化的本质提供途径。

英文摘要:

The exact renormalization group (ERG) is a powerful tool for understanding the formal properties of field theories. By adapting generalized ERG schemes to the flow of wavefunctionals, we obtain a large class of continuous unitary networks, a special case of which includes a class of Gaussian continuous Multi-scale Renormalization Ansatzes (cMERAs). The novel feature of these generalized wavefunctional ERG schemes is allowing for modifications of the dispersion relation, which drastically changes the entanglement structure of the ultraviolet states. Through our construction, we demonstrate that cMERA can be derived from a more fundamental "microscopic" principle, which amounts to the usual RG principle of path integral independence, suitably adapted to quantum states of the field theory. The establishment of such a principle may provide a path forward for exploring cMERA beyond the free field regime, and for understanding the nature of entanglement renormalization intrinsically in the continuum.

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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