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Updated: Jul 17, 2026
07:46
Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Un modelo cíclico del universo
Paul J Steinhardt1, Neil Turok
1Joseph Henry Laboratories, Princeton University, Princeton, NJ 08544, USA. steinh@princeton.edu
Science (New York, N.Y.)
|April 27, 2002
Resumen
Este modelo cosmológico propone un universo con ciclos interminables de "bang" y "crunch". Cada ciclo presenta una expansión y contracción lentas, proporcionando las condiciones para la siguiente época cósmica.
Área de la Ciencia:
- Cosmología Cosmología.
- La astrofísica es la astrofísica.
- Física teórica es la física teórica.
Sus antecedentes:
- Los modelos cosmológicos actuales luchan por explicar el origen y la evolución del universo.
- El concepto de un principio y un final singular es desafiado por las teorías del universo cíclico.
Objetivo del estudio:
- Proponer un nuevo modelo cosmológico con un universo cíclico.
- Para explicar la homogeneidad cósmica, la planitud y la energía a través de una secuencia de bang-crunch.
Principales métodos:
- Modelado teórico de las épocas cósmicas.
- Análisis de las condiciones durante la transición entre los ciclos cósmicos.
Principales resultados:
- El modelo propuesto describe una secuencia interminable de explosiones y crujidos cósmicos.
- La temperatura y la densidad finitas se mantienen en la transición bang-crunch.
- Cada ciclo incluye una expansión lenta y acelerada seguida de una contracción.
Conclusiones:
- El modelo cíclico ofrece una alternativa a la cosmología inflacionaria.
- La secuencia bang-crunch genera naturalmente la homogeneidad, la planitud y la energía requeridas para los ciclos subsiguientes.
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