High School Do Open Timelike Curves Exist?

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SUMMARY

Closed Timelike Curves (CTCs) are theoretical constructs in General Relativity that do not violate causality, yet none have been observed in reality. The discussion emphasizes that while there is a body of literature on CTC solutions, such as the source provided from arXiv (1206.5485), the existence of these curves remains purely speculative. Participants are discouraged from inquiring about their existence, as it has been established that CTCs have no known bearing on reality.

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These are apparently Closed Timelike Curves that don't violate causality, do they exist?
 
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Can you describe what they are better? Or provide a source that discusses them? I've never heard of this terminology.
 
Matterwave said:
Can you describe what they are better? Or provide a source that discusses them? I've never heard of this terminology.
https://arxiv.org/abs/1206.5485
Only big thing I could find on them.
 
TheQuestionGuy14 said:
These are apparently Closed Timelike Curves that don't violate causality, do they exist?
None have been observed.
 
I see these threads from QuestionGuy over and over and over and wonder if I am in a closed timelike curve!
 
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Vanadium 50 said:
I see these threads from QuestionGuy over and over and over and wonder if I am in a closed timelike curve!
@TheQuestionGuy14 V50 is right, this is quite tiresome. If you have questions about the theoretical literature on closed timelike curves then you are welcome to post them here. There is a body of literature on the theory of CTC solutions to GR.

However please stop asking any questions related to their existence. No such curves have been observed, they are purely theoretical. They have no known bearing on reality.

Further posts on CTC existence or reality will be summarily deleted. Thread closed
 
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Thread 'EPR revisited'

In an inertial frame of reference (IFR), there are two fixed points, A and B, which share an entangled state $$ \frac{1}{\sqrt{2}}(|0>_A|1>_B+|1>_A|0>_B) $$ At point A, a measurement is made. The state then collapses to $$ |a>_A|b>_B, \{a,b\}=\{0,1\} $$ We assume that A has the state ##|a>_A## and B has ##|b>_B## simultaneously, i.e., when their synchronized clocks both read time T However, in other inertial frames, due to the relativity of simultaneity, the moment when B has ##|b>_B##...
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