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| DOI | 10.1103/PHYSREVD.91.024029 | ||||
| Año | 2015 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Efforts to understand the origin of the cosmological constant. and its observed value have led to consider it as a dynamical field rather than as a universal constant. The possibility then arises that the universe, or regions of it, might be in a superposition of quantum states with different values of. so that its actual value would not be definite. There appears to be no argument to rule out this possibility for a generic spacetime dimension D. However, as proved herein, for D = 3 there exists a superselection rule that forbids such superpositions. The proof is based on the asymptotic symmetry algebra.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | BUNSTER-WEITZMAN, CLAUDIO | Hombre |
Centro de Estudios Científicos - Chile
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| 2 | PEREZ-DONOSO, ALFREDO HECTOR | Hombre |
Centro de Estudios Científicos - Chile
|
| Fuente |
|---|
| FONDECYT |
| Alexander von Humboldt Foundation |
| Chilean Government through the Centers of Excellence Base Financing Program of CONICYT |
| Agradecimiento |
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| The Centro de Estudios Cientificos (CECs) is funded by the Chilean Government through the Centers of Excellence Base Financing Program of Conicyt. One of the authors (C. B.) wishes to thank the Alexander von Humboldt Foundation for a Humboldt Research Award, while the other (A. P.) gratefully acknowledges support through Fondecyt Grant No. 11130262. |