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Abstract:

We report a series of exact cosmological solutions of the gravitational (1+1)-dimensional equations with a classical scalar field and an isotropic perfect fluid source. We consider a Robertson - Walker universe and obtain the scale factor and the field for several physically interesting potentials. In the case of a non-vanishing positive cosmological constant , we have found asymptotically de Sitter solutions which resemble the (3+1)-dimensional results. When we have to take restrictive conditions on the sign of the potential function in order to obtain exactly solvable models which include exponential inflationary processes.

Registro:

Documento: Artículo
Título:Exact scalar field cosmologies in (1+1) dimensions
Autor:Chimento, L.P.; Cossarini, A.E.
Filiación:Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellón I, 1428 Buenos Aires, Argentina
Año:1994
Volumen:11
Número:5
Página de inicio:1177
Página de fin:1184
DOI: http://dx.doi.org/10.1088/0264-9381/11/5/006
Título revista:Classical and Quantum Gravity
ISSN:02649381
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02649381_v11_n5_p1177_Chimento

Referencias:

  • Polyakov, AM, QUANTUM GRAVITY IN TWO DIMENSIONS (1987) Modern Physics Letters A, 2 (11), p. 893
  • Jackiw, R, (1985) Nucl. Phys., 252 (1-2), p. 343
  • Chimento, LP, Cossarini, AE, (1992) Nucl. Phys., 373 (2), p. 438
  • Gegenberg, J, Kelly, PF, Mann, RB, McArthur, R, Vincent, DE, REINTERPRETATION OF THE NON-LINEAR SIGMA MODEL WITH TORSION (1988) Modern Physics Letters A, 3 (18), p. 1791
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  • Mann, RB, Morsink, SM, Sikkema, AE, Steele, TG, (1991) Phys. Rev., 43 (12), p. 3948
  • Chimento, LP, Cossarini, AE, (1993) Class. Quantum Grav., 10 (10), p. 2001
  • Chimento, LP, Cossarini, AE, Jakubi, AS, (1994); Easther, R, (1993) Class. Quantum Grav., 10 (11), p. 2203
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Citas:

---------- APA ----------
Chimento, L.P. & Cossarini, A.E. (1994) . Exact scalar field cosmologies in (1+1) dimensions. Classical and Quantum Gravity, 11(5), 1177-1184.
http://dx.doi.org/10.1088/0264-9381/11/5/006
---------- CHICAGO ----------
Chimento, L.P., Cossarini, A.E. "Exact scalar field cosmologies in (1+1) dimensions" . Classical and Quantum Gravity 11, no. 5 (1994) : 1177-1184.
http://dx.doi.org/10.1088/0264-9381/11/5/006
---------- MLA ----------
Chimento, L.P., Cossarini, A.E. "Exact scalar field cosmologies in (1+1) dimensions" . Classical and Quantum Gravity, vol. 11, no. 5, 1994, pp. 1177-1184.
http://dx.doi.org/10.1088/0264-9381/11/5/006
---------- VANCOUVER ----------
Chimento, L.P., Cossarini, A.E. Exact scalar field cosmologies in (1+1) dimensions. 1994;11(5):1177-1184.
http://dx.doi.org/10.1088/0264-9381/11/5/006