Renormalization group analysis on emergence of higher rank symmetry and higher moment conservation

Higher rank symmetry and higher moment conservation have been drawn considerable attention from, e.g., subdiffusive transport to fracton topological order. In this paper, we perform a one-loop renormalization group (RG) analysis and show how these phenomena emerge at low energies. We consider a d-di...

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Main Authors: Hongchao Li, Peng Ye
Format: Article
Language:English
Published: American Physical Society 2021-12-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.3.043176
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author Hongchao Li
Peng Ye
author_facet Hongchao Li
Peng Ye
author_sort Hongchao Li
collection DOAJ
description Higher rank symmetry and higher moment conservation have been drawn considerable attention from, e.g., subdiffusive transport to fracton topological order. In this paper, we perform a one-loop renormalization group (RG) analysis and show how these phenomena emerge at low energies. We consider a d-dimensional model of interacting bosons of d components. At higher rank-symmetric points with conserved angular moments, the ath bosons have kinetic energy only along the x[over ̂]^{a} direction. Therefore, the symmetric points look highly anisotropic and fine-tuned. By studying RG in a wide vicinity of the symmetric points, we find that symmetry-disallowed kinetic terms tend to be irrelevant within the perturbative regime, which potentially leads to emergent higher rank symmetry and higher moment conservation at the deep infrared limit. While nonperturbative analysis is called for in the future, by regarding higher rank symmetry as an emergent phenomenon, the RG analysis presented in this paper holds alternative promise for realizing higher rank symmetry and higher moment conservation in experimentally achievable systems.
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spelling doaj.art-d105c392db3b42eeadc2aff4842e17ac2024-04-12T17:16:18ZengAmerican Physical SocietyPhysical Review Research2643-15642021-12-013404317610.1103/PhysRevResearch.3.043176Renormalization group analysis on emergence of higher rank symmetry and higher moment conservationHongchao LiPeng YeHigher rank symmetry and higher moment conservation have been drawn considerable attention from, e.g., subdiffusive transport to fracton topological order. In this paper, we perform a one-loop renormalization group (RG) analysis and show how these phenomena emerge at low energies. We consider a d-dimensional model of interacting bosons of d components. At higher rank-symmetric points with conserved angular moments, the ath bosons have kinetic energy only along the x[over ̂]^{a} direction. Therefore, the symmetric points look highly anisotropic and fine-tuned. By studying RG in a wide vicinity of the symmetric points, we find that symmetry-disallowed kinetic terms tend to be irrelevant within the perturbative regime, which potentially leads to emergent higher rank symmetry and higher moment conservation at the deep infrared limit. While nonperturbative analysis is called for in the future, by regarding higher rank symmetry as an emergent phenomenon, the RG analysis presented in this paper holds alternative promise for realizing higher rank symmetry and higher moment conservation in experimentally achievable systems.http://doi.org/10.1103/PhysRevResearch.3.043176
spellingShingle Hongchao Li
Peng Ye
Renormalization group analysis on emergence of higher rank symmetry and higher moment conservation
Physical Review Research
title Renormalization group analysis on emergence of higher rank symmetry and higher moment conservation
title_full Renormalization group analysis on emergence of higher rank symmetry and higher moment conservation
title_fullStr Renormalization group analysis on emergence of higher rank symmetry and higher moment conservation
title_full_unstemmed Renormalization group analysis on emergence of higher rank symmetry and higher moment conservation
title_short Renormalization group analysis on emergence of higher rank symmetry and higher moment conservation
title_sort renormalization group analysis on emergence of higher rank symmetry and higher moment conservation
url http://doi.org/10.1103/PhysRevResearch.3.043176
work_keys_str_mv AT hongchaoli renormalizationgroupanalysisonemergenceofhigherranksymmetryandhighermomentconservation
AT pengye renormalizationgroupanalysisonemergenceofhigherranksymmetryandhighermomentconservation