Consider the flat Robertson-Walker metric: -dt + a(t) [dx + dy + dz] ds = where...
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Consider the flat Robertson-Walker metric: -dt² + a(t)² [dx² + dy² + dz²] ds² = where a(t) is the scale factor. (a) Identify the Killing vectors associated with spatial translations in the metric. [3 marks] Consider the flat Robertson-Walker metric: -dt² + a(t)² [dx² + dy² + dz²] ds² = where a(t) is the scale factor. (a) Identify the Killing vectors associated with spatial translations in the metric. [3 marks]
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