Novel duality-invariant theories of electrodynamics
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arXiv
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866912694841376768 |
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| author | Murcia, Ángel J. |
| author_facet | Murcia, Ángel J. |
| contents | We identify new families of duality-invariant theories of electrodynamics. We achieve this in two different ways. On the one hand, we present an algorithm to construct a one-parameter family of exactly duality-invariant theories from a single seed duality-invariant theory. If the seed theory is causal, the theories constructed from this method will also be causal when the parameter is non-negative. On the other hand, we find two additional novel families of duality-invariant theories which include a nonzero term independent of the electromagnetic field. The first of them generalizes Bialynicki-Birula electrodynamics, while the second family of theories features a well-defined Maxwell limit as the term independent of the gauge field strength is sent to zero. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_16502 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Novel duality-invariant theories of electrodynamics Murcia, Ángel J. High Energy Physics - Theory Classical Physics We identify new families of duality-invariant theories of electrodynamics. We achieve this in two different ways. On the one hand, we present an algorithm to construct a one-parameter family of exactly duality-invariant theories from a single seed duality-invariant theory. If the seed theory is causal, the theories constructed from this method will also be causal when the parameter is non-negative. On the other hand, we find two additional novel families of duality-invariant theories which include a nonzero term independent of the electromagnetic field. The first of them generalizes Bialynicki-Birula electrodynamics, while the second family of theories features a well-defined Maxwell limit as the term independent of the gauge field strength is sent to zero. |
| title | Novel duality-invariant theories of electrodynamics |
| topic | High Energy Physics - Theory Classical Physics |
| url | https://arxiv.org/abs/2507.16502 |