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arXiv 2510.03080hep-thcond-mat.otherquant-ph
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一般连接条件与(1+1)维标量网络CFT的Casimir效应

General Junction Condition and Casimir Effect for (1+1)-Dimensional Scalar Network CFT

Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University(华南师范大学);School of Physics and Astronomy, Sun Yat-Sen University(中山大学)

Tian-Ming Zhao, Sinan Pang, Ling Li, Yu Guo, Rong-Xin Miao

AI总结:

研究(1+1)维自由标量场在网络上最一般的连接条件,由O(p)群刻画,并推导网络Casimir能量的上下界。

摘要:

最近,BCFT和ICFT已被推广到网络上的CFT(NCFT)。NCFT的一个关键方面是如何在网络节点处连接不同边上的CFT。先前的研究主要集中于要求场在节点处连续的一种特定连接条件(JC)。在本文中,我们研究了与变分原理和能量守恒一致的(1+1)维自由标量场最一般的连接条件。这些一般连接条件由O(p)群刻画,其中p表示节点处连接的边数。我们给出了两种典型JC在真实物理系统中的精确实现。此外,我们推导了(1+1)维自由标量场网络Casimir能量的下界和上界,并将下界推广到涵盖一般NCFT。最后,我们分析了由正多面体组成的网络中的Casimir效应,并研究了从单个组件构建此类网络所需的结合能。

英文摘要:

Recently, BCFT and ICFT have been generalized to the CFT on networks (NCFT). A key aspect of NCFT is how we connect the CFTs across different edges at the network nodes. Previous research has primarily concentrated on a specific junction condition (JC) that requires the field to be continuous at the nodes. In this paper, we investigate the most general junction conditions for $(1+1)$-dimensional free scalars that are consistent with the variational principle and energy conservation. These general junction conditions are characterized by an $O(p)$ group, where $p$ represents the number of edges connected at a node. We provide exact realizations of two typical JCs in real physical systems. Additionally, we derive both the lower and upper bounds on the network Casimir energy for $(1+1)$-dimensional free scalar fields and extend the lower bound to encompass general NCFTs. Finally, we analyze the Casimir effect in networks composed of regular polyhedra and examine the binding energy required to construct such networks from individual components.

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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