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Title: Multiple Magnetorotons and Spectral Sum Rules in Fractional Quantum Hall Systems

Abstract

We study, numerically, the charge neutral excitations (magnetorotons) in fractional quantum Hall systems, concentrating on the two Jain states near quarter filling, ν = 2/7 and ν = 2/9, and the ν = 1/4 Fermi-liquid state itself. In contrast to the ν = 1/3 states and the Jain states near half filling, on each of the two Jain states ν = 2/7 and ν = 2/9 the graviton spectral densities show two, instead of one, magnetoroton peaks. The magnetorotons have spin 2 and have opposite chiralities in the ν = 2/7 state and the same chirality in the ν = 2/9 state. Here, we also provide a numerical verification of a sum rule relating the guiding center spin s¯ with the spectral densities of the stress tensor.

Authors:
ORCiD logo [1];  [2];  [3];  [4];  [5]
  1. Brown Univ., Providence, RI (United States)
  2. Princeton Univ., NJ (United States)
  3. California State Univ. Los Angeles, CA (United States)
  4. Univ. of Chicago, IL (United States)
  5. Florida State Univ., Tallahassee, FL (United States)
Publication Date:
Research Org.:
Univ. of Chicago, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
OSTI Identifier:
1903188
Grant/Contract Number:  
SC0009924; SC0002140; FG02-13ER41958; DMR-1644779
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 128; Journal Issue: 24; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Fractional quantum Hall effect; 2-dimensional systems; Effective field theory; Exact diagonalization

Citation Formats

Nguyen, Dung Xuan, Haldane, F. D. M., Rezayi, E. H., Son, Dam Thanh, and Yang, Kun. Multiple Magnetorotons and Spectral Sum Rules in Fractional Quantum Hall Systems. United States: N. p., 2022. Web. doi:10.1103/physrevlett.128.246402.
Nguyen, Dung Xuan, Haldane, F. D. M., Rezayi, E. H., Son, Dam Thanh, & Yang, Kun. Multiple Magnetorotons and Spectral Sum Rules in Fractional Quantum Hall Systems. United States. https://doi.org/10.1103/physrevlett.128.246402
Nguyen, Dung Xuan, Haldane, F. D. M., Rezayi, E. H., Son, Dam Thanh, and Yang, Kun. Mon . "Multiple Magnetorotons and Spectral Sum Rules in Fractional Quantum Hall Systems". United States. https://doi.org/10.1103/physrevlett.128.246402. https://www.osti.gov/servlets/purl/1903188.
@article{osti_1903188,
title = {Multiple Magnetorotons and Spectral Sum Rules in Fractional Quantum Hall Systems},
author = {Nguyen, Dung Xuan and Haldane, F. D. M. and Rezayi, E. H. and Son, Dam Thanh and Yang, Kun},
abstractNote = {We study, numerically, the charge neutral excitations (magnetorotons) in fractional quantum Hall systems, concentrating on the two Jain states near quarter filling, ν = 2/7 and ν = 2/9, and the ν = 1/4 Fermi-liquid state itself. In contrast to the ν = 1/3 states and the Jain states near half filling, on each of the two Jain states ν = 2/7 and ν = 2/9 the graviton spectral densities show two, instead of one, magnetoroton peaks. The magnetorotons have spin 2 and have opposite chiralities in the ν = 2/7 state and the same chirality in the ν = 2/9 state. Here, we also provide a numerical verification of a sum rule relating the guiding center spin s¯ with the spectral densities of the stress tensor.},
doi = {10.1103/physrevlett.128.246402},
journal = {Physical Review Letters},
number = 24,
volume = 128,
place = {United States},
year = {Mon Jun 13 00:00:00 EDT 2022},
month = {Mon Jun 13 00:00:00 EDT 2022}
}

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