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Title: Spectroscopy of Spinons in Coulomb Quantum Spin Liquids

Abstract

We calculate the effect of the emergent photon on threshold production of spinons in U(1) Coulomb spin liquids such as quantum spin ice. The emergent Coulomb interaction modifies the threshold production cross-section dramatically, changing the weak turn-on expected from the density of states to an abrupt onset reflecting the basic coupling parameters. The slow photon typical in existing lattice models and materials suppresses the intensity at finite momentum and allows profuse Cerenkov radiation beyond a critical momentum. Furthermore, these features are broadly consistent with recent numerical and experimental results.

Authors:
ORCiD logo [1];  [2];  [1]
  1. Boston Univ., MA (United States)
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); T. D. Lee Inst., Shanghai (China); Shanghai Jiao Tong Univ. (China); Stockholm Univ. (Sweden); Arizona State Univ., Tempe, AZ (United States)
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Fusion Energy Sciences (FES); European Research Council (ERC); Swedish Research Council (SRC); National Science Foundation (NSF)
OSTI Identifier:
1635007
Alternate Identifier(s):
OSTI ID: 1603727
Grant/Contract Number:  
SC0012567; 742104; 335-2014-7424; PHY-1752727
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 124; Journal Issue: 9; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; nonperturbative effects in field theory; quantum electrodynamics; quantum spin liquid; spin dynamics; spin ice; diagrammatic methods

Citation Formats

Morampudi, Siddhardh C., Wilczek, Frank, and Laumann, Chris R. Spectroscopy of Spinons in Coulomb Quantum Spin Liquids. United States: N. p., 2020. Web. https://doi.org/10.1103/PhysRevLett.124.097204.
Morampudi, Siddhardh C., Wilczek, Frank, & Laumann, Chris R. Spectroscopy of Spinons in Coulomb Quantum Spin Liquids. United States. https://doi.org/10.1103/PhysRevLett.124.097204
Morampudi, Siddhardh C., Wilczek, Frank, and Laumann, Chris R. Fri . "Spectroscopy of Spinons in Coulomb Quantum Spin Liquids". United States. https://doi.org/10.1103/PhysRevLett.124.097204. https://www.osti.gov/servlets/purl/1635007.
@article{osti_1635007,
title = {Spectroscopy of Spinons in Coulomb Quantum Spin Liquids},
author = {Morampudi, Siddhardh C. and Wilczek, Frank and Laumann, Chris R.},
abstractNote = {We calculate the effect of the emergent photon on threshold production of spinons in U(1) Coulomb spin liquids such as quantum spin ice. The emergent Coulomb interaction modifies the threshold production cross-section dramatically, changing the weak turn-on expected from the density of states to an abrupt onset reflecting the basic coupling parameters. The slow photon typical in existing lattice models and materials suppresses the intensity at finite momentum and allows profuse Cerenkov radiation beyond a critical momentum. Furthermore, these features are broadly consistent with recent numerical and experimental results.},
doi = {10.1103/PhysRevLett.124.097204},
journal = {Physical Review Letters},
number = 9,
volume = 124,
place = {United States},
year = {2020},
month = {3}
}

Journal Article:

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Cited by: 1 work
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    Works referencing / citing this record:

    A quantum liquid of magnetic octupoles on the pyrochlore lattice
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