Observer dependence in quantum cosmology

The main thesis of this paper is that minisuperspace quantum cosmology reproduces the observer dependence of the vacuum found in quantum field theory in curved spacetime. We show that the vacua picked up by the Hartle-Hawking "no boundary" proposal in two different minisuperspaces sharing...

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Autor principal: Calzetta, E.
Otros Autores: Kandus, A.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 1993
Acceso en línea:Registro en Scopus
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100 1 |a Calzetta, E. 
245 1 0 |a Observer dependence in quantum cosmology 
260 |c 1993 
270 1 0 |m Calzetta, E.; Instituto de Astronomía Y Física del Espacio, Casilla de Correos 67, Sucursal 28, 1428 Buenos Aires, Argentina 
506 |2 openaire  |e Política editorial 
504 |a Castagnino, M., Ferraro, R., (1986) Phys. Rev. D, 34, p. 497 
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504 |a Gibbons, G.W., Hawking, S.W., Perry, M.J., (1987) Nucl. Phys., 138 B, p. 141 
504 |a Schleich, K., (1987) Phys. Rev. D, 36, p. 2342 
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504 |a Hartle, J.B., Hawking, S.W., (1983) Phys. Rev. D, 28, p. 2960 
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504 |a Regge, T., Wheeler, J.A., Handbook of Mathematical Functions (1972) Natl. Bur. Stand. (U.S.), , edited by, M. Abramowitz, I. Stegun, Applied Mathematics Series No., 55, 10th, ed. with corrections, U.S. GPO, Washington, DC 
504 |a Kreider, D.L., Kuller, R.G., Ostberg, D.R., Perkins, F.W., (1966) An Introduction to Linear Analysis, , Addison-Wesley, Reading, MA 
504 |a Lousto, C.O., Mazzitelli, F.D., ON THE DYNAMICS OF SPHERICALLY SYMMETRIC SYSTEMS IN QUANTUM GRAVITY (1991) International Journal of Modern Physics A, 6, p. 1017 
504 |a Laflamme, R., (1989) Physica A, 158, p. 58 
520 3 |a The main thesis of this paper is that minisuperspace quantum cosmology reproduces the observer dependence of the vacuum found in quantum field theory in curved spacetime. We show that the vacua picked up by the Hartle-Hawking "no boundary" proposal in two different minisuperspaces sharing the same classical limit (k=0 and k=1 de Sitter minisuperspaces) are nonequivalent. A closer inspection suggests that the observer dependence is introduced through the choice of the Wick rotation. This hypothesis is supported by the analysis of the static de Sitter minisuperspace, where two different Euclidean sections are available, and where again two inequivalent vacua are obtained. These examples are not conclusive, but point to the possibility of a similar ambiguity even in full quantum cosmology. © 1993 The American Physical Society.  |l eng 
593 |a Instituto de Astronomía Y Física del Espacio, Casilla de Correos 67, Sucursal 28, 1428 Buenos Aires, Argentina 
593 |a Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, 1428 Buenos Aires, Argentina 
700 1 |a Kandus, A. 
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