Conservation laws from asymptotic symmetry and subleading charges in QED
Abstract We present several results on memory effects, asymptotic symmetry and soft theorems in massive QED. We first clarify in what sense the memory effects are interpreted as the charge conservation of the large gauge transformations, and derive the leading and subleading memory effects in classi...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-07-01
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| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1007/JHEP07(2018)122 |
| _version_ | 1811285526014066688 |
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| author | Hayato Hirai Sotaro Sugishita |
| author_facet | Hayato Hirai Sotaro Sugishita |
| author_sort | Hayato Hirai |
| collection | DOAJ |
| description | Abstract We present several results on memory effects, asymptotic symmetry and soft theorems in massive QED. We first clarify in what sense the memory effects are interpreted as the charge conservation of the large gauge transformations, and derive the leading and subleading memory effects in classical electromagnetism. We also show that the sub-subleading charges are not conserved without including contributions from the spacelike infinity. Next, we study QED in the BRST formalism and show that parts of large gauge transformations are physical symmetries by justifying that they are not gauge redundancies. Finally, we obtain the expression of charges associated with the subleading soft photon theorem in massive scalar QED. |
| first_indexed | 2024-04-13T02:45:25Z |
| format | Article |
| id | doaj.art-e9550e4ce991487098e1387c47c3f92b |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-04-13T02:45:25Z |
| publishDate | 2018-07-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-e9550e4ce991487098e1387c47c3f92b2022-12-22T03:06:03ZengSpringerOpenJournal of High Energy Physics1029-84792018-07-012018713610.1007/JHEP07(2018)122Conservation laws from asymptotic symmetry and subleading charges in QEDHayato Hirai0Sotaro Sugishita1Department of Physics, Osaka UniversityDepartment of Physics, Osaka UniversityAbstract We present several results on memory effects, asymptotic symmetry and soft theorems in massive QED. We first clarify in what sense the memory effects are interpreted as the charge conservation of the large gauge transformations, and derive the leading and subleading memory effects in classical electromagnetism. We also show that the sub-subleading charges are not conserved without including contributions from the spacelike infinity. Next, we study QED in the BRST formalism and show that parts of large gauge transformations are physical symmetries by justifying that they are not gauge redundancies. Finally, we obtain the expression of charges associated with the subleading soft photon theorem in massive scalar QED.http://link.springer.com/article/10.1007/JHEP07(2018)122Gauge SymmetryScattering Amplitudes |
| spellingShingle | Hayato Hirai Sotaro Sugishita Conservation laws from asymptotic symmetry and subleading charges in QED Journal of High Energy Physics Gauge Symmetry Scattering Amplitudes |
| title | Conservation laws from asymptotic symmetry and subleading charges in QED |
| title_full | Conservation laws from asymptotic symmetry and subleading charges in QED |
| title_fullStr | Conservation laws from asymptotic symmetry and subleading charges in QED |
| title_full_unstemmed | Conservation laws from asymptotic symmetry and subleading charges in QED |
| title_short | Conservation laws from asymptotic symmetry and subleading charges in QED |
| title_sort | conservation laws from asymptotic symmetry and subleading charges in qed |
| topic | Gauge Symmetry Scattering Amplitudes |
| url | http://link.springer.com/article/10.1007/JHEP07(2018)122 |
| work_keys_str_mv | AT hayatohirai conservationlawsfromasymptoticsymmetryandsubleadingchargesinqed AT sotarosugishita conservationlawsfromasymptoticsymmetryandsubleadingchargesinqed |