Boundary modes in the Chamon model

被引：7

作者：

Fontana, Weslei B. ^{[1
]}

Pereira, Rodrigo G. ^{[1
,2
]}

机构：

[1] Univ Fed Rio Grande do Norte, Int Inst Phys, BR-59078400 Natal, RN, Brazil

[2] Univ Fed Rio Grande do Norte, Dept Fis Teor & Expt, BR-59072970 Natal, RN, Brazil

来源：

SCIPOST PHYSICS | 2023年 / 15卷 / 01期

关键词：

QUANTUM; STATES;

D O I：

10.21468/SciPostPhys.15.1.010

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the fracton phase described by the Chamon model in a manifold with a boundary. The new processess and excitations emerging at the boundary can be understood by means of a diagrammatic framework. From a continuum perspective, the boundary theory is described by a set of scalar fields in similarity with standard K-matrix ChernSimons theory. The continuum theory recovers the gapped boundaries of the lattice model once we include sufficiently strong interactions that break charge conservation. The analysis of the perturbative relevance of the leading interactions reveals a regime in which the Chamon model can have a stable gapless fractonic phase at its boundary.

引用

页数：27

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