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Abstract:

The notion of probabilistic time is used to explain the origin and possible measurement of time in the Unruh-Wald formulation of quantum gravity. It is shown how ideal and real clocks measure probabilistic time and how we can extract from the Universe a real clock. Afterward, it is also shown how probabilistic time can be endowed with the two fundamental properties of time: it is an ordering parameter and it is "Heraclitian." We discuss the correlation between the different arrows of time with the quantum arrows defined by the real clock. © 1993 The American Physical Society.

Registro:

Documento: Artículo
Título:Origin and measurement of time in quantum cosmology
Autor:Castagnino, M.A.; Lombardo, F.
Filiación:Instituto de Astronomía y Física del Espacio, Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires, Argentina
Departamento de Física, Universidad de Buenos Aires, Ciudad Universitaria, 1428, Buenos Aires, Argentina
Año:1993
Volumen:48
Número:4
Página de inicio:1722
Página de fin:1735
DOI: http://dx.doi.org/10.1103/PhysRevD.48.1722
Título revista:Physical Review D
ISSN:05562821
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_05562821_v48_n4_p1722_Castagnino

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Citas:

---------- APA ----------
Castagnino, M.A. & Lombardo, F. (1993) . Origin and measurement of time in quantum cosmology. Physical Review D, 48(4), 1722-1735.
http://dx.doi.org/10.1103/PhysRevD.48.1722
---------- CHICAGO ----------
Castagnino, M.A., Lombardo, F. "Origin and measurement of time in quantum cosmology" . Physical Review D 48, no. 4 (1993) : 1722-1735.
http://dx.doi.org/10.1103/PhysRevD.48.1722
---------- MLA ----------
Castagnino, M.A., Lombardo, F. "Origin and measurement of time in quantum cosmology" . Physical Review D, vol. 48, no. 4, 1993, pp. 1722-1735.
http://dx.doi.org/10.1103/PhysRevD.48.1722
---------- VANCOUVER ----------
Castagnino, M.A., Lombardo, F. Origin and measurement of time in quantum cosmology. 1993;48(4):1722-1735.
http://dx.doi.org/10.1103/PhysRevD.48.1722