Spectroscopy of Spinons in Coulomb Quantum Spin Liquids
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...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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American Physical Society
2020
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| Online Access: | https://hdl.handle.net/1721.1/125409 |
| _version_ | 1826197758512463872 |
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| author | Morampudi, Siddhardh C. Wilczek, Frank Laumann, Chris R. |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Morampudi, Siddhardh C. Wilczek, Frank Laumann, Chris R. |
| author_sort | Morampudi, Siddhardh C. |
| collection | MIT |
| description | 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. These features are broadly consistent with recent numerical and experimental results. Keywords: Nonperturbative effects in field theory; Quantum electrodynamics; Quantum spin liquid; Spin dynamics; Spin ice; Diagrammatic methods |
| first_indexed | 2024-09-23T10:53:02Z |
| format | Article |
| id | mit-1721.1/125409 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T10:53:02Z |
| publishDate | 2020 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1254092022-09-30T23:41:11Z Spectroscopy of Spinons in Coulomb Quantum Spin Liquids Morampudi, Siddhardh C. Wilczek, Frank Laumann, Chris R. Massachusetts Institute of Technology. Center for Theoretical Physics 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. These features are broadly consistent with recent numerical and experimental results. Keywords: Nonperturbative effects in field theory; Quantum electrodynamics; Quantum spin liquid; Spin dynamics; Spin ice; Diagrammatic methods U.S. Department of Energy (Grant DE-SC0012567) European Research Council (Grant 742104) Swedish Research Council (Grant 335-2014-7424) 2020-05-22T14:14:02Z 2020-05-22T14:14:02Z 2020-03 2019-12 2020-03-06T13:26:19Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 https://hdl.handle.net/1721.1/125409 Morampudi, Siddhardh C., Wilczek, Frank, and Laumann, Chris R. "Spectroscopy of Spinons in Coulomb Quantum Spin Liquids." Physical Review Letters 124, 9 (March 2020): 097204 © 2020 American Physical Society en https://dx.doi.org/10.1103/PhysRevLett.124.097204 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Morampudi, Siddhardh C. Wilczek, Frank Laumann, Chris R. Spectroscopy of Spinons in Coulomb Quantum Spin Liquids |
| title | Spectroscopy of Spinons in Coulomb Quantum Spin Liquids |
| title_full | Spectroscopy of Spinons in Coulomb Quantum Spin Liquids |
| title_fullStr | Spectroscopy of Spinons in Coulomb Quantum Spin Liquids |
| title_full_unstemmed | Spectroscopy of Spinons in Coulomb Quantum Spin Liquids |
| title_short | Spectroscopy of Spinons in Coulomb Quantum Spin Liquids |
| title_sort | spectroscopy of spinons in coulomb quantum spin liquids |
| url | https://hdl.handle.net/1721.1/125409 |
| work_keys_str_mv | AT morampudisiddhardhc spectroscopyofspinonsincoulombquantumspinliquids AT wilczekfrank spectroscopyofspinonsincoulombquantumspinliquids AT laumannchrisr spectroscopyofspinonsincoulombquantumspinliquids |