Chiral symmetry breaking and restoration by helical magnetic fields in AdS/CFT
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2025
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866913708221923328 |
|---|---|
| author | Berenguer, Martí Mas, Javier Matsumoto, Masataka Murata, Keiju Ramallo, Alfonso V. |
| author_facet | Berenguer, Martí Mas, Javier Matsumoto, Masataka Murata, Keiju Ramallo, Alfonso V. |
| contents | We study the effects of helical magnetic fields on chiral symmetry breaking within the AdS/QCD framework using the D3/D7-brane model. By analyzing the brane embeddings, we obtain three types of massless solutions, corresponding to three phases with different behavior in the dual field theory. From the study of quark condensates, free energy, and electric currents, we find that helical magnetic fields can counteract uniform-field-induced symmetry breaking, driving the system towards symmetry restoration. We also find an effect analog to the chiral magnetic effect whereby the current is parallel to the magnetic field. We further study the massive case, and find that the helical configuration is less effective in erasing the first order phase transition that is present in the case of a constant magnetic field. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_19197 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Chiral symmetry breaking and restoration by helical magnetic fields in AdS/CFT Berenguer, Martí Mas, Javier Matsumoto, Masataka Murata, Keiju Ramallo, Alfonso V. High Energy Physics - Theory General Relativity and Quantum Cosmology High Energy Physics - Phenomenology We study the effects of helical magnetic fields on chiral symmetry breaking within the AdS/QCD framework using the D3/D7-brane model. By analyzing the brane embeddings, we obtain three types of massless solutions, corresponding to three phases with different behavior in the dual field theory. From the study of quark condensates, free energy, and electric currents, we find that helical magnetic fields can counteract uniform-field-induced symmetry breaking, driving the system towards symmetry restoration. We also find an effect analog to the chiral magnetic effect whereby the current is parallel to the magnetic field. We further study the massive case, and find that the helical configuration is less effective in erasing the first order phase transition that is present in the case of a constant magnetic field. |
| title | Chiral symmetry breaking and restoration by helical magnetic fields in AdS/CFT |
| topic | High Energy Physics - Theory General Relativity and Quantum Cosmology High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2502.19197 |