Question

5.8 Consider an expanding, positively curved universe containing only a cosmological constant (20 = 220 > 1). Show that such a universe underwent a “Big Bounce" at a scale factor doume = ( )", abounce = 1 (5.120) 20 and that the scale factor as a function of time is a(t) = Abounce cosh[/S20Ho(t – tbounce)], (5.121) where tbounce is the time at which the Big Bounce occurred. What is the time to - tbounce that has elapsed since the Big Bounce, expressed as a function of Ho and 202

Answer 1

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