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Jan 1 at 22:23 comment added Attila Janos Kovacs The answer is obviously correct. However, I don't understand how it becomes a Closed Timelike Curve. For it to be closed, all coordinates must be the same at the end as they were at the beginning. t, R, z are constants, ϕ changes. Ergo ϕ must be a periodic coordinate, say between 0 and 2Pi. But since ϕ=wλ we , it must end up being periodic λ But then λ we can't be the path length parameter of the world line, can it?
May 26, 2014 at 17:35 history edited Jordan CC BY-SA 3.0
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May 26, 2014 at 17:30 history answered Jordan CC BY-SA 3.0