The String Phases of Hawking Radiation, De Sitter Stage and De Broglie Type Duality

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dc.creatorMedrano, Marina Ramon
dc.creatorSanchez, Norma G.
dc.date2004-08-17
dc.date.accessioned2026-07-07T04:17:19Z
dc.date.available2026-07-07T04:17:19Z
dc.descriptionWe explicitly describe the last stages of black hole evaporation in the context of string theory : the combined study of Quantum Field Theory (QFT) and String Theory (ST) in curved backgrounds allows us to go further in the understanding of quantum gravity effects. The string ``analogue model''(or thermo-dynamical approach) is a well suited framework for this purpose.The results also apply to another physically relevant case: de Sitter background. Semiclassical (QFT) and quantum gravity (String) phases or regimes are properly determined (back reaction effects included). The Hawking-Gibbons temperature ${T_H}$ of the semiclassical regime becomes the intrinsic string temperature ${T_S}$ in the quantum gravity regime.The spectrum of black hole evaporation is an incomplete gamma function of $(T_S - T_H)$: the early evaporation is thermal (Hawking radiation), while at the end the black hole undergoes a phase transition to a string state decaying (as string decay) into pure (non mixed) particle states.Remarquably, explicit dynamical computations show that both gravity regimes: semiclassical (QFT) and quantum (string), are dual of each other, in the precise sense of the classical-quantum (de Broglie type) duality.
dc.descriptionTo appear in the volume in honor of Professor Alberto Galindo Tixaire on the occasion of his 70th birthday
dc.identifierhttps://arxiv.org/abs/hep-th/0408128
dc.identifierhttp://arxiv.org/abs/hep-th/0408128
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/52708
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleThe String Phases of Hawking Radiation, De Sitter Stage and De Broglie Type Duality
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