|Aug2-04, 03:22 AM||#1|
help me...(about a graviton)
I don't know the relation of graviton and closed string.
Why the graviton is closed string? And what conditions need that?
I really want to know about it in detail.(of course including formula)
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|Aug2-04, 09:31 AM||#2|
The graviton in bosonic string theory comes from the interaction of the right moving excitations and the left moving ones on the string. This requires the string to be closed; on an open string the R and L excitations would just peter out at the endpoints.
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