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Abstract:

We show that the dynamics of a spatially dosed Friedmann-Robertson-Walker universe conformally coupled to a real, free, massive scalar field, is chaotic, for large enough field amplitudes. We do so by proving that this system is integrable under the adiabatic approximation, but that the corresponding KAM tori break up when non-adiabatic terms are considered. This finding is confirmed by numerical evaluation of the Lyapunov exponents associated with the system, among other criteria. Chaos sets strong limitations on our ability to predict the value of the field at the big crunch, from its given value at the big bang.

Registro:

Documento: Artículo
Título:Chaotic Friedmann-Robertson-Walker cosmology
Autor:Calzetta, E.; El Hasi, C.
Filiación:Inst. de Astron. y Fisica Del Espacio, Casilla de Correo 67, Sucursal 28, 1428 Buenos Aires, Argentina
Año:1993
Volumen:10
Número:9
Página de inicio:1825
Página de fin:1841
DOI: http://dx.doi.org/10.1088/0264-9381/10/9/022
Título revista:Classical and Quantum Gravity
ISSN:02649381
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02649381_v10_n9_p1825_Calzetta

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Citas:

---------- APA ----------
Calzetta, E. & El Hasi, C. (1993) . Chaotic Friedmann-Robertson-Walker cosmology. Classical and Quantum Gravity, 10(9), 1825-1841.
http://dx.doi.org/10.1088/0264-9381/10/9/022
---------- CHICAGO ----------
Calzetta, E., El Hasi, C. "Chaotic Friedmann-Robertson-Walker cosmology" . Classical and Quantum Gravity 10, no. 9 (1993) : 1825-1841.
http://dx.doi.org/10.1088/0264-9381/10/9/022
---------- MLA ----------
Calzetta, E., El Hasi, C. "Chaotic Friedmann-Robertson-Walker cosmology" . Classical and Quantum Gravity, vol. 10, no. 9, 1993, pp. 1825-1841.
http://dx.doi.org/10.1088/0264-9381/10/9/022
---------- VANCOUVER ----------
Calzetta, E., El Hasi, C. Chaotic Friedmann-Robertson-Walker cosmology. 1993;10(9):1825-1841.
http://dx.doi.org/10.1088/0264-9381/10/9/022