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
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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
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Año: | 1993
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Volumen: | 48
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Número: | 4
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Página de inicio: | 1722
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Página de fin: | 1735
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DOI: |
http://dx.doi.org/10.1103/PhysRevD.48.1722 |
Título revista: | Physical Review D
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ISSN: | 05562821
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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