Chaotic inflation with a scalar field in non-classical states

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dc.creatorFinelli, F.
dc.creatorVacca, G. P.
dc.creatorVenturi, G.
dc.date1997-12-29
dc.date1998-09-02
dc.date.accessioned2026-07-07T11:46:25Z
dc.date.available2026-07-07T11:46:25Z
dc.descriptionWe study chaotic inflation driven by a real, massive, homogeneous minimally coupled scalar field in a flat Robertson-Walker spacetime. The semiclassical limit for gravity is considered, whereas the scalar field is treated quantum mechanically by the technique of invariants in order to also investigate the dynamics of the system for non-classical states of the latter. An inflationary stage is found to be possible for a large set of initial quantum states, obviously including the coherent ones. States associated with a vanishing mean value of the field (such as the vacuum and the thermal) can also lead to inflation, however for such states we cannot make a definitive prediction due to the importance of higher order corrections during inflation. The results for the above coupled system are described and their corrections evaluated perturbatively.
dc.description19 pages, 9 postscript figures, latex. Final version as accepted for publication on Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/gr-qc/9712098
dc.identifierhttp://arxiv.org/abs/gr-qc/9712098
dc.identifierPhys.Rev.D58:103514,1998
dc.identifierdoi:10.1103/PhysRevD.58.103514
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/202219
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleChaotic inflation with a scalar field in non-classical states
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