The collapse of the wave function in the joint metric-matter quantization for inflation
It has been argued that the standard inflationary scenario suffers from a serious deficiency as a model for the origin of the seeds of cosmic structure: it can not truly account for the transition from an early homogeneous and isotropic stage to another one lacking such symmetries. The issue has oft...
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2012
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| LEADER | 10697caa a22009377a 4500 | ||
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| 001 | PAPER-23334 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518205500.0 | ||
| 008 | 190411s2012 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-84869083613 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 100 | 1 | |a Diez-Tejedor, A. | |
| 245 | 1 | 4 | |a The collapse of the wave function in the joint metric-matter quantization for inflation |
| 260 | |c 2012 | ||
| 270 | 1 | 0 | |m León, G.; Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, 04510 Mexico, DF, Mexico; email: gabriel.leon@ts.infn.it |
| 506 | |2 openaire |e Política editorial | ||
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| 520 | 3 | |a It has been argued that the standard inflationary scenario suffers from a serious deficiency as a model for the origin of the seeds of cosmic structure: it can not truly account for the transition from an early homogeneous and isotropic stage to another one lacking such symmetries. The issue has often been thought as a standard instance of the "quantum measurement problem", but as has been recently argued by some of us, that quagmire reaches a critical level in the cosmological context of interest here. This has lead to a proposal in which the standard paradigm is supplemented by a hypothesis concerning the self-induced dynamical collapse of the wave function, as representing the physical mechanism through which such change of symmetry is brought forth. This proposal was originally formulated within the context of semiclassical gravity. Here we investigate an alternative realization of such idea implemented directly within the standard analysis in terms of a quantum field jointly describing the inflaton and metric perturbations, the so called Mukhanov-Sasaki variable. We show that even though the prescription is quite different, the theoretical predictions include some deviations from the standard ones, which are indeed very similar to those found in the early studies. We briefly discuss the differences between the two prescriptions, at both, the conceptual and practical levels. © 2012 Springer Science+Business Media, LLC. |l eng | |
| 536 | |a Detalles de la financiación: Consejo Nacional de Ciencia y Tecnología, 101712, UNAM-PAPIIT IN107412-3 | ||
| 536 | |a Detalles de la financiación: Acknowledgments We are glad to acknowledge very useful discussions with Prof. R. M. Wald. The work of ADT is supported by a UNAM postdoctoral fellowship and the CONACYT grant No 101712. The work of GL and DS is supported in part by the CONACYT grant No 101712. GL acknowledges financial support by CONACYT postdoctoral grant. DS was supported also by CONACYT and DGAPA-UNAM sabbatical fellowships, UNAM-PAPIIT IN107412-3 grant, and gladly acknowledges the IAFE-UBA for the hospitality during a sabbatical stay. | ||
| 593 | |a Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, 04510 Mexico, DF, Mexico | ||
| 593 | |a División de Ciencias e Ingenierías, Departamento de Física, Campus León, Universidad de Guanajuato, 37150 León, Mexico | ||
| 593 | |a Department of Physics, University of Trieste, Strada Costiera 11, 34014 Trieste, Italy | ||
| 593 | |a Instituto de Astronomía y Física del Espacio, Universidad de Buenos Aires, Casilla de Correos 67, Sucursal 28, 1428 Buenos Aires, Argentina | ||
| 593 | |a Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, 04510 Mexico, DF, Mexico | ||
| 690 | 1 | 0 | |a COSMOLOGY |
| 690 | 1 | 0 | |a INFLATION |
| 690 | 1 | 0 | |a QUANTUM FOUNDATIONS |
| 690 | 1 | 0 | |a QUANTUM GRAVITY |
| 700 | 1 | |a León, G. | |
| 700 | 1 | |a Sudarsky, D. | |
| 773 | 0 | |d 2012 |g v. 44 |h pp. 2965-2988 |k n. 12 |p Gen. Relativ. Gravit. |x 00017701 |w (AR-BaUEN)CENRE-369 |t General Relativity and Gravitation | |
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