Massive Photons: An Infrared Regularization Scheme for Lattice
Standard methods for including electromagnetic interactions in lattice quantum chromodynamics calculations result in power-law finite-volume corrections to physical quantities. Removing these by extrapolation requires costly computations at multiple volumes. We introduce a photon mass to alternative...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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American Physical Society
2017
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| Online Access: | http://hdl.handle.net/1721.1/110393 https://orcid.org/0000-0002-1411-360X |
| _version_ | 1810988481285980160 |
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| author | Shindler, Andrea Tiburzi, Brian C. Walker-Loud, André Endres, Michael G |
| author2 | Massachusetts Institute of Technology. Center for Theoretical Physics |
| author_facet | Massachusetts Institute of Technology. Center for Theoretical Physics Shindler, Andrea Tiburzi, Brian C. Walker-Loud, André Endres, Michael G |
| author_sort | Shindler, Andrea |
| collection | MIT |
| description | Standard methods for including electromagnetic interactions in lattice quantum chromodynamics calculations result in power-law finite-volume corrections to physical quantities. Removing these by extrapolation requires costly computations at multiple volumes. We introduce a photon mass to alternatively regulate the infrared, and rely on effective field theory to remove its unphysical effects. Electromagnetic modifications to the hadron spectrum are reliably estimated with a precision and cost comparable to conventional approaches that utilize multiple larger volumes. A significant overall cost advantage emerges when accounting for ensemble generation. The proposed method may benefit lattice calculations involving multiple charged hadrons, as well as quantum many-body computations with long-range Coulomb interactions. |
| first_indexed | 2024-09-23T12:06:41Z |
| format | Article |
| id | mit-1721.1/110393 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:06:41Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/1103932022-09-28T00:12:47Z Massive Photons: An Infrared Regularization Scheme for Lattice Shindler, Andrea Tiburzi, Brian C. Walker-Loud, André Endres, Michael G Massachusetts Institute of Technology. Center for Theoretical Physics Endres, Michael G Standard methods for including electromagnetic interactions in lattice quantum chromodynamics calculations result in power-law finite-volume corrections to physical quantities. Removing these by extrapolation requires costly computations at multiple volumes. We introduce a photon mass to alternatively regulate the infrared, and rely on effective field theory to remove its unphysical effects. Electromagnetic modifications to the hadron spectrum are reliably estimated with a precision and cost comparable to conventional approaches that utilize multiple larger volumes. A significant overall cost advantage emerges when accounting for ensemble generation. The proposed method may benefit lattice calculations involving multiple charged hadrons, as well as quantum many-body computations with long-range Coulomb interactions. United States. Department of Energy (DE-SC0010495) 2017-06-30T18:02:54Z 2017-06-30T18:02:54Z 2016-08 2016-04 2016-08-10T22:00:04Z Article http://purl.org/eprint/type/JournalArticle 0031-9007 1079-7114 http://hdl.handle.net/1721.1/110393 Endres, Michael G.; Shindler, Andrea; Tiburzi, Brian C. and Walker-Loud, André. "Massive Photons: An Infrared Regularization Scheme for Lattice." Physical Review Letters 117, 072002 (August 2016): 1-6 © 2016 American Physical Society https://orcid.org/0000-0002-1411-360X en http://dx.doi.org/10.1103/PhysRevLett.117.072002 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 | Shindler, Andrea Tiburzi, Brian C. Walker-Loud, André Endres, Michael G Massive Photons: An Infrared Regularization Scheme for Lattice |
| title | Massive Photons: An Infrared Regularization Scheme for Lattice |
| title_full | Massive Photons: An Infrared Regularization Scheme for Lattice |
| title_fullStr | Massive Photons: An Infrared Regularization Scheme for Lattice |
| title_full_unstemmed | Massive Photons: An Infrared Regularization Scheme for Lattice |
| title_short | Massive Photons: An Infrared Regularization Scheme for Lattice |
| title_sort | massive photons an infrared regularization scheme for lattice |
| url | http://hdl.handle.net/1721.1/110393 https://orcid.org/0000-0002-1411-360X |
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