Primordial magnetic fields from metric perturbations
| dc.contributor.author | López Maroto, Antonio | |
| dc.date.accessioned | 2023-06-20T19:09:34Z | |
| dc.date.available | 2023-06-20T19:09:34Z | |
| dc.date.issued | 2001-09-24 | |
| dc.description | © 2001 The American Physical Society. This work has been partially supported by the Ministerio de Educación y Ciencia (Spain) (CICYT AEN 97-1693). | |
| dc.description.abstract | We study the amplification of electromagnetic vacuum fluctuations induced by the evolution of scalar metric perturbations at the end of inflation. Such perturbations break the conformal invariance of Maxwell equations in Friedmann-Robertson-Walker backgrounds and allow the growth of magnetic fields on super-Hubble scales. We relate the strength of the fields generated by this mechanism with the power spectrum of scalar perturbations and estimate the amplification on galactic scales for different values of the spectral index. Finally we discuss the possible effects of finite conductivity during reheating. | |
| dc.description.department | Depto. de Física Teórica | |
| dc.description.faculty | Fac. de Ciencias Físicas | |
| dc.description.refereed | TRUE | |
| dc.description.sponsorship | Ministerio de Educación y Ciencia (Spain) | |
| dc.description.sponsorship | CICYT | |
| dc.description.status | pub | |
| dc.eprint.id | https://eprints.ucm.es/id/eprint/27311 | |
| dc.identifier.doi | 10.1103/PhysRevD.64.083006 | |
| dc.identifier.issn | 0556-2821 | |
| dc.identifier.officialurl | http://dx.doi.org/10.1103/PhysRevD.64.083006 | |
| dc.identifier.relatedurl | http://journals.aps.org/ | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14352/59328 | |
| dc.issue.number | 8 | |
| dc.journal.title | Physical Review D | |
| dc.language.iso | eng | |
| dc.publisher | American Physical Society | |
| dc.relation.projectID | AEN 97-1693 | |
| dc.rights.accessRights | open access | |
| dc.subject.cdu | 53 | |
| dc.subject.keyword | Inhomogeneous cosmologies | |
| dc.subject.keyword | Particle-production | |
| dc.subject.keyword | Inflation | |
| dc.subject.keyword | Universe | |
| dc.subject.keyword | Origin | |
| dc.subject.keyword | Invariance | |
| dc.subject.keyword | Breaking | |
| dc.subject.keyword | Creation | |
| dc.subject.keyword | Noise | |
| dc.subject.ucm | Física (Física) | |
| dc.subject.unesco | 22 Física | |
| dc.title | Primordial magnetic fields from metric perturbations | |
| dc.type | journal article | |
| dc.volume.number | 64 | |
| dcterms.references | [1] P.P. Kronberg, Rep. Prog. Phys. 57, 325 (1994); E.N. Parker, Cosmical Magnetic Fields (Clarendon, Oxford, 1979); Y.B. Zeldovich, A.A. Ruzmaikin, and D. Sokolov, Magnetic Fields in Astrophysics (Gordon and Breach, New York, 1983). [2] A.C. Davis, M. Lilley, and O. Törnkvist, Phys. Rev. D 60, 021301(R) (1999). [3] R.M. Kulsrud, R. Cen, J.P. Ostriker, and D. Ryu, Astrophys. J. 480, 481 (1997). [4] E.R. Harrison, Phys. Rev. Lett. 30, 188 (1973). [5] M.S. Turner and L.M. Widrow, Phys. Rev. D 37, 2743 (1988). [6] A.D. Dolgov, Phys. Rev. D 48, 2499 (1993). [7] M. Gasperini, M. Giovannini, and G. Veneziano, Phys. Rev. Lett. 75, 3796 (1995). [8] R. Opher and U.F. Wichoski, Phys. Rev. Lett. 78, 787 (1997). [9] B. Rathra, Astrophys. J. Lett. 391, L1 (1992); F. Finelli and A. Gruppuso, Phys. Lett. B 502, 216 (2001). [10] O. Bertolami and D.F. Mota, Phys. Lett. B 455, 96 (1999). [11] A.C. Davis, K. Dimopoulos, T. Prokopec, and O. Törnkvist, Phys. Lett. B 501, 165 (2001). [12] E. Calzetta, A. Kandus, and F. Mazzitelli, Phys. Rev. D 57, 7139 (1998). [13] M. Giovannini and M. Shaposhnikov, Phys. Rev. D 62, 103512 (2000); hep-ph/0011105. [14] B.A. Bassett, C. Gordon, R. Maartens, and D.I. Kaiser, Phys. Rev. D 61, 061302(R) (2000). [15] V.F. Mukhanov, H.A. Feldman, and R.H. Brandenberger, Phys. Rep. 215, 203 (1992). [16] J.A. Frieman, Phys. Rev. D 39, 389 (1989); J. Céspedes and E. Verdaguer, ibid. 41, 1022 (1990); A. Campos and E. Verdaguer, ibid. 45, 4428 (1992). [17] V. Zanchin, A. Maia, Jr., W. Craig, and R. Brandenberger, Phys. Rev. D 57, 4651 (1998); 60, 023505 (1999); B.A. Bassett and S. Liberati, ibid. 58, 021302(R) (1998). [18] N.D. Birrell and P.C.W. Davies, Quantum Fields in Curved Space (Cambridge University Press, Cambridge, England, 1982). [19] E.W. Kolb and M.S. Turner, The Early Universe (Addison- Wesley, Reading, MA, 1990). [20] L. Kofman, A.D. Linde, and A.A. Starobinsky, Phys. Rev. Lett. 73, 3195 (1994); Phys. Rev. D 56, 3258 (1997); J.H. Traschen and R.H. Brandenberger, ibid. 42, 2491 (1990); Y. Shtanov, J. Traschen, and R. Brandenberger, ibid. 51, 5438 (1995). [21] G. Felder, L. Kofman, and A. Linde, Phys. Rev. D 59, 123523 (1999). [22] D. Boyanovsky, H.J. de Vega, and M. Simionato, Phys. Rev. D 61, 085007 (2000). | |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | e14691a1-d3b0-47b7-96d5-24d645534471 | |
| relation.isAuthorOfPublication.latestForDiscovery | e14691a1-d3b0-47b7-96d5-24d645534471 |
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