Palabras clave
Solución exacta
Campo escalar
Ecuaciones de Einstein
Temperatura
Hubble
Parámetro de deceleración
Kretschmann
Singularidad
Estabilidad de Jacobi
Cómo citar
Resumen
Se presentan soluciones analíticas para un universo con un campo escalar equivalente a una mezcla de tres fluidos perfectos: energía oscura, polvo y materia rígida. El espacio-tiempo del universo es anisotrópico y homogéneo del tipo Petrov D que se expande isotrópicamente en dos direcciones espaciales. También se determina el parámetro de Hubble, parámetro de desaceleración y la temperatura en términos del tiempo. Por último, se estudia la estabilidad de Jacobi para la evolución dinámica del universo con el campo escalar y se concluye que el modelo es estable para cualquier tiempo.
Referencias
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Derechos de autor 2025 Andrés Angulo-Sibaja , Rodrigo Alvarado Marín (Autor/a)