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Aug 10, 2014 at 6:07 vote accept Ultima
Aug 10, 2014 at 2:21 answer added Xcheckr timeline score: 3
Aug 9, 2014 at 22:44 comment added Nikos M. of the top of my head, $K$ seems like the kernel/null space of momentums, so $k+K$ momentum acting on a state should have same effect as $k$ momentum acting on a state (provided what is stated that $k \notin \{K\}$)
Aug 9, 2014 at 22:21 history tweeted twitter.com/#!/StackPhysics/status/498232706111905792
Aug 9, 2014 at 21:55 history edited Ultima CC BY-SA 3.0
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Aug 9, 2014 at 21:11 history edited Ultima CC BY-SA 3.0
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Aug 9, 2014 at 20:54 history edited Qmechanic CC BY-SA 3.0
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Aug 9, 2014 at 20:33 history asked Ultima CC BY-SA 3.0