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| Auteurs principaux: | , |
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| Format: | Preprint |
| Publié: |
2024
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| Accès en ligne: | https://arxiv.org/abs/2412.06718 |
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| _version_ | 1866917863103660032 |
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| author | del Rio, Adrian Navarro-Salas, Jose |
| author_facet | del Rio, Adrian Navarro-Salas, Jose |
| contents | In this article we briefly review the adiabatic renormalization program for spin 1/2 fields in expanding universes. We introduce the method and provide explicit expressions for the renormalized vacuum expectation value of the stress-energy tensor. Then, we discuss its application to some cosmological scenario of physical interest. We end up sketching out the proof that adiabatic and DeWitt-Schwinger point-splitting schemes provide the same renormalized expectation values of the stress-energy tensor for Dirac fields. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_06718 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Adiabatic regularization for spin $1/2$ fields and the renormalized stress-energy tensor del Rio, Adrian Navarro-Salas, Jose General Relativity and Quantum Cosmology In this article we briefly review the adiabatic renormalization program for spin 1/2 fields in expanding universes. We introduce the method and provide explicit expressions for the renormalized vacuum expectation value of the stress-energy tensor. Then, we discuss its application to some cosmological scenario of physical interest. We end up sketching out the proof that adiabatic and DeWitt-Schwinger point-splitting schemes provide the same renormalized expectation values of the stress-energy tensor for Dirac fields. |
| title | Adiabatic regularization for spin $1/2$ fields and the renormalized stress-energy tensor |
| topic | General Relativity and Quantum Cosmology |
| url | https://arxiv.org/abs/2412.06718 |