Constraining fermionic condensates
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arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2024
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| _version_ | 1866915069069099008 |
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| author | Endrődi, Gergely Kovács, Tamás G. Markó, Gergely Pannullo, Laurin |
| author_facet | Endrődi, Gergely Kovács, Tamás G. Markó, Gergely Pannullo, Laurin |
| contents | We study spontaneous symmetry breaking in quantum field theories with fermionic order parameters and construct, for the first time in the literature, the constraint effective potential for it. The Grassmann-valued constraint we encounter is handled using its large-volume expansion, corresponding to a saddle-point approximation. We test the method in the chiral Gross-Neveu model and demonstrate its consistency with the standard approach. The machinery we developed opens up a new avenue to investigate the spontaneous symmetry breaking and restoration in field theories, in particular for the chiral symmetry breaking in the strong interactions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_12973 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Constraining fermionic condensates Endrődi, Gergely Kovács, Tamás G. Markó, Gergely Pannullo, Laurin High Energy Physics - Lattice We study spontaneous symmetry breaking in quantum field theories with fermionic order parameters and construct, for the first time in the literature, the constraint effective potential for it. The Grassmann-valued constraint we encounter is handled using its large-volume expansion, corresponding to a saddle-point approximation. We test the method in the chiral Gross-Neveu model and demonstrate its consistency with the standard approach. The machinery we developed opens up a new avenue to investigate the spontaneous symmetry breaking and restoration in field theories, in particular for the chiral symmetry breaking in the strong interactions. |
| title | Constraining fermionic condensates |
| topic | High Energy Physics - Lattice |
| url | https://arxiv.org/abs/2412.12973 |