Artículo
Chimento, L.P.; Mollerach, M.S. "Quantum vacuum definition for spin-(1/2) fields in Robertson-Walker metrics" (1986) Physical Review D. 34(12):3689-3697
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Abstract:
We study the quantum vacuum definition for spin-(1/2) fields in a Robertson-Walker universe using the coincidence of a local property (singularity structure of the DeWitt-Schwinger kernel) and a global property (energy minimization) and we obtain two kinds of vacua: strong and weak (which coincide with the energy minimization vacuum). The density of particles created during the expansion of the Universe between two weak vacua is found to be finite. However, we prove that the energy-momentum tensor vacuum expectation value is nonrenormalizable. © 1986 The American Physical Society.
Registro:
| Documento: | Artículo |
| Título: | Quantum vacuum definition for spin-(1/2) fields in Robertson-Walker metrics |
| Autor: | Chimento, L.P.; Mollerach, M.S. |
| Filiación: | Departamento de Física, F.C.E. y N., Universidad de Buenos Aires, 1428, Buenos Aires, Argentina |
| Año: | 1986 |
| Volumen: | 34 |
| Número: | 12 |
| Página de inicio: | 3689 |
| Página de fin: | 3697 |
| DOI: | http://dx.doi.org/10.1103/PhysRevD.34.3689 |
| Título revista: | Physical Review D |
| ISSN: | 05562821 |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562821_v34_n12_p3689_Chimento |
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Citas:
---------- APA ----------
Chimento, L.P. & Mollerach, M.S. (1986) . Quantum vacuum definition for spin-(1/2) fields in Robertson-Walker metrics. Physical Review D, 34(12), 3689-3697.http://dx.doi.org/10.1103/PhysRevD.34.3689
---------- CHICAGO ----------
Chimento, L.P., Mollerach, M.S. "Quantum vacuum definition for spin-(1/2) fields in Robertson-Walker metrics" . Physical Review D 34, no. 12 (1986) : 3689-3697.http://dx.doi.org/10.1103/PhysRevD.34.3689
---------- MLA ----------
Chimento, L.P., Mollerach, M.S. "Quantum vacuum definition for spin-(1/2) fields in Robertson-Walker metrics" . Physical Review D, vol. 34, no. 12, 1986, pp. 3689-3697.http://dx.doi.org/10.1103/PhysRevD.34.3689
---------- VANCOUVER ----------
Chimento, L.P., Mollerach, M.S. Quantum vacuum definition for spin-(1/2) fields in Robertson-Walker metrics. 1986;34(12):3689-3697.http://dx.doi.org/10.1103/PhysRevD.34.3689
