Spectroscopy of Spinons in Coulomb Quantum Spin Liquids

Morampudi, Siddhardh C.; Wilczek, Frank; Laumann, Chris R.

doi:10.1103/PhysRevLett.124.097204

Title: Spectroscopy of Spinons in Coulomb Quantum Spin Liquids

Journal Article · 06 March 2020 · Physical Review Letters

DOI: https://doi.org/10.1103/PhysRevLett.124.097204 · OSTI ID:1635007

^[1]; Wilczek, Frank ^[2]; Laumann, Chris R. ^[1]

Boston Univ., MA (United States)
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)

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.

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Research Organization:: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Fusion Energy Sciences (FES); European Research Council (ERC); Swedish Research Council (SRC); National Science Foundation (NSF); USDOE

Grant/Contract Number:: SC0012567; 742104; 335-2014-7424; PHY-1752727

OSTI ID:: 1635007

Alternate ID(s):: OSTI ID: 1603727

Journal Information:: Physical Review Letters, Vol. 124, Issue 9; ISSN 0031-9007

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited By (2)

A quantum liquid of magnetic octupoles on the pyrochlore lattice Sibille, Romain; Gauthier, Nicolas; Lhotel, Elsa Nature Physics https://doi.org/10.1038/s41567-020-0827-7	journal	March 2020
A quantum liquid of magnetic octupoles on the pyrochlore lattice Sibille, Romain; Gauthier, Nicolas; Lhotel, Elsa arXiv https://doi.org/10.48550/arxiv.1912.00928	text	January 2019

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Title: Spectroscopy of Spinons in Coulomb Quantum Spin Liquids

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