量子场论中的对称分辨测量：简评

IF 1.8 4区物理与天体物理 Q3 PHYSICS, APPLIED

Modern Physics Letters B Pub Date : 2024-05-28 DOI:10.1142/s0217984924300023

Olalla A. Castro-Alvaredo, Lucía Santamaría-Sanz

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引用次数: 0

摘要

在这篇简短的综述中，我们将介绍对称解析纠缠度量研究中涉及的关键定义、观点和技术，重点是对称解析纠缠熵。为了能够定义这种纠缠度量，所研究的理论必须具有内部对称性。然后，对称解析纠缠度量量化了对特定纠缠度量的贡献，而这种贡献可以与所选的对称部门相关联。我们的综述侧重于共形（无间隙/无assless/临界）和可积分（有间隙/无量）量子场论，其中领先的计算技术采用了被称为（复合）分支点扭转场的对称场。

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Symmetry-resolved measures in quantum field theory: A short review

In this short review, we present the key definitions, ideas and techniques involved in the study of symmetry resolved entanglement measures, with a focus on the symmetry resolved entanglement entropy. In order to be able to define such entanglement measures, it is essential that the theory under study possess an internal symmetry. Then, symmetry-resolved entanglement measures quantify the contribution to a particular entanglement measure that can be associated to a chosen symmetry sector. Our review focuses on conformal (gapless/massless/critical) and integrable (gapped/massive) quantum field theories, where the leading computational technique employs symmetry fields known as (composite) branch point twist fields.

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来源期刊

Modern Physics Letters B 物理-物理：凝聚态物理

CiteScore

3.70

自引率

10.50%

发文量

235

审稿时长

5.9 months

期刊介绍： MPLB opens a channel for the fast circulation of important and useful research findings in Condensed Matter Physics, Statistical Physics, as well as Atomic, Molecular and Optical Physics. A strong emphasis is placed on topics of current interest, such as cold atoms and molecules, new topological materials and phases, and novel low-dimensional materials. The journal also contains a Brief Reviews section with the purpose of publishing short reports on the latest experimental findings and urgent new theoretical developments.