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Abstract:

This paper addresses the quantization of minisuperspace cosmological models by studying a possible solution to the problem of time and time asymmetries in quantum cosmology. Since general relativity does not have a privileged time variable of Newtonian type, it is necessary, in order to have a dynamical evolution, to select a physical clock, This choice yields, in the proposed approach, to the breaking of the so-called clock-reversal invariance of the theory which is clearly distinguished from the well-known motion-reversal invariance of both classical and quantum mechanics. In light of this new perspective, the problem of imposing proper boundary conditions on the space of solutions of the Wheeler-DeWitt equation is reformulated. The symmetry-breaking formalism of previous papers is analyzed and a clarification of it is proposed in order to satisfy the requirements of the new interpretation.

Registro:

Documento: Artículo
Título:Time asymmetries in quantum cosmology and the search for boundary conditions to the Wheeler-DeWitt equation
Autor:Castagnino, M.; Catren, G.; Ferraro, R.
Filiación:Inst. Astronormia/Fis. del Espacio, Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires, Argentina
Departamento de Física, Fac. de Ciencias Exactas y Naturales, Ciudad Universitaria, Pabellón I, 1428 Buenos Aires, Argentina
Año:2002
Volumen:19
Número:18
Página de inicio:4729
Página de fin:4746
DOI: http://dx.doi.org/10.1088/0264-9381/19/18/308
Título revista:Classical and Quantum Gravity
Título revista abreviado:Classical Quantum Gravity
ISSN:02649381
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02649381_v19_n18_p4729_Castagnino

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Citas:

---------- APA ----------
Castagnino, M., Catren, G. & Ferraro, R. (2002) . Time asymmetries in quantum cosmology and the search for boundary conditions to the Wheeler-DeWitt equation. Classical and Quantum Gravity, 19(18), 4729-4746.
http://dx.doi.org/10.1088/0264-9381/19/18/308
---------- CHICAGO ----------
Castagnino, M., Catren, G., Ferraro, R. "Time asymmetries in quantum cosmology and the search for boundary conditions to the Wheeler-DeWitt equation" . Classical and Quantum Gravity 19, no. 18 (2002) : 4729-4746.
http://dx.doi.org/10.1088/0264-9381/19/18/308
---------- MLA ----------
Castagnino, M., Catren, G., Ferraro, R. "Time asymmetries in quantum cosmology and the search for boundary conditions to the Wheeler-DeWitt equation" . Classical and Quantum Gravity, vol. 19, no. 18, 2002, pp. 4729-4746.
http://dx.doi.org/10.1088/0264-9381/19/18/308
---------- VANCOUVER ----------
Castagnino, M., Catren, G., Ferraro, R. Time asymmetries in quantum cosmology and the search for boundary conditions to the Wheeler-DeWitt equation. Classical Quantum Gravity. 2002;19(18):4729-4746.
http://dx.doi.org/10.1088/0264-9381/19/18/308