# Conceptual unification of elementary particles, black holes, quantum de Sitter and Anti de Sitter string states

@article{Snchez2004ConceptualUO, title={Conceptual unification of elementary particles, black holes, quantum de Sitter and Anti de Sitter string states}, author={Norma G. S{\'a}nchez}, journal={International Journal of Modern Physics A}, year={2004}, volume={19}, pages={4173-4200} }

We provide a conceptual unified description of the quantum properties of black holes (BH), elementary particles, de Sitter (dS) and Anti-de Sitter (AdS) string states.The conducting line of argument is the classical–quantum (de Broglie, Compton) duality here extended to the quantum gravity (string) regime (wave–particle–string duality). The semiclassical (QFT) and quantum (string) gravity regimes are respectively characterized and related: sizes, masses, accelerations and temperatures. The… Expand

#### 16 Citations

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We 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… Expand

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We compute the quantum string entropy Ss(m, H) from the microscopic string density of states ρs(m, H) of mass m in Anti-de Sitter space–time. For high m, (high Hm → c/α′), no phase transition occurs… Expand

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We compute the quantum string entropy Ss(m, H) from the microscopic string density of states ρs(m, H) of mass m in de Sitter space–time. We find for high m (high Hm → c/α') a new phase transition at… Expand

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The physical history of the Universe is completed by including the quantum Planckian and trans-Planckian phase before inflation in the Standard Model of the Universe in agreement with observations.… Expand

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We study the SL(2,R) WZWN string model describing bosonic string theory in AdS3 spacetime as a deformed oscillator together with its mass spectrum and the string modified SL(2,R) uncertainty… Expand

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