Nonlinear Dirac Equations
We construct nonlinear extensions of Dirac's relativistic electron equation that preserve its other desirable properties such as locality, separability, conservation of probability and Poincaré invariance. We determine the constraints that the nonlinear term must obey and classify the resultant...
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| Veröffentlicht in: | Symmetry, Integrability and Geometry: Methods and Applications |
|---|---|
| Datum: | 2009 |
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | Englisch |
| Veröffentlicht: |
Інститут математики НАН України
2009
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/149176 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Nonlinear Dirac Equations / Wei Khim Ng, Rajesh R. Parwani // Symmetry, Integrability and Geometry: Methods and Applications. — 2009. — Т. 5. — Бібліогр.: 46 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862704663421255680 |
|---|---|
| author | Wei Khim Ng Rajesh R. Parwani |
| author_facet | Wei Khim Ng Rajesh R. Parwani |
| citation_txt | Nonlinear Dirac Equations / Wei Khim Ng, Rajesh R. Parwani // Symmetry, Integrability and Geometry: Methods and Applications. — 2009. — Т. 5. — Бібліогр.: 46 назв. — англ. |
| collection | DSpace DC |
| container_title | Symmetry, Integrability and Geometry: Methods and Applications |
| description | We construct nonlinear extensions of Dirac's relativistic electron equation that preserve its other desirable properties such as locality, separability, conservation of probability and Poincaré invariance. We determine the constraints that the nonlinear term must obey and classify the resultant non-polynomial nonlinearities in a double expansion in the degree of nonlinearity and number of derivatives. We give explicit examples of such nonlinear equations, studying their discrete symmetries and other properties. Motivated by some previously suggested applications we then consider nonlinear terms that simultaneously violate Lorentz covariance and again study various explicit examples. We contrast our equations and construction procedure with others in the literature and also show that our equations are not gauge equivalent to the linear Dirac equation. Finally we outline various physical applications for these equations.
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| first_indexed | 2025-12-07T16:52:12Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-149176 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1815-0659 |
| language | English |
| last_indexed | 2025-12-07T16:52:12Z |
| publishDate | 2009 |
| publisher | Інститут математики НАН України |
| record_format | dspace |
| spelling | Wei Khim Ng Rajesh R. Parwani 2019-02-19T18:13:18Z 2019-02-19T18:13:18Z 2009 Nonlinear Dirac Equations / Wei Khim Ng, Rajesh R. Parwani // Symmetry, Integrability and Geometry: Methods and Applications. — 2009. — Т. 5. — Бібліогр.: 46 назв. — англ. 1815-0659 2000 Mathematics Subject Classification: 81P05; 81Q99; 83A05 https://nasplib.isofts.kiev.ua/handle/123456789/149176 We construct nonlinear extensions of Dirac's relativistic electron equation that preserve its other desirable properties such as locality, separability, conservation of probability and Poincaré invariance. We determine the constraints that the nonlinear term must obey and classify the resultant non-polynomial nonlinearities in a double expansion in the degree of nonlinearity and number of derivatives. We give explicit examples of such nonlinear equations, studying their discrete symmetries and other properties. Motivated by some previously suggested applications we then consider nonlinear terms that simultaneously violate Lorentz covariance and again study various explicit examples. We contrast our equations and construction procedure with others in the literature and also show that our equations are not gauge equivalent to the linear Dirac equation. Finally we outline various physical applications for these equations. en Інститут математики НАН України Symmetry, Integrability and Geometry: Methods and Applications Nonlinear Dirac Equations Article published earlier |
| spellingShingle | Nonlinear Dirac Equations Wei Khim Ng Rajesh R. Parwani |
| title | Nonlinear Dirac Equations |
| title_full | Nonlinear Dirac Equations |
| title_fullStr | Nonlinear Dirac Equations |
| title_full_unstemmed | Nonlinear Dirac Equations |
| title_short | Nonlinear Dirac Equations |
| title_sort | nonlinear dirac equations |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/149176 |
| work_keys_str_mv | AT weikhimng nonlineardiracequations AT rajeshrparwani nonlineardiracequations |