Segmented strings in AdS 3 Article Swipe
YOU?
·
· 2015
· Open Access
·
· DOI: https://doi.org/10.1007/jhep11(2015)110
· OA: W1899006038
We study segmented strings in flat space and in $AdS_3$. In flat space, these\nwell known classical motions describe strings which at any instant of time are\npiecewise linear. In $AdS_3$, the worldsheet is composed of faces each of which\nis a region bounded by null geodesics in an $AdS_2$ subspace of $AdS_3$. The\ntime evolution can be described by specifying the null geodesic motion of kinks\nin the string at which two segments are joined. The outcome of collisions of\nkinks on the worldsheet can be worked out essentially using considerations of\ncausality. We study several examples of closed segmented strings in $AdS_3$ and\nfind an unexpected quasi-periodic behavior. We also work out a WKB analysis of\nquantum states of yo-yo strings in $AdS_3$ and find a logarithmic term\nreminiscent of the logarithmic twist of string states on the leading Regge\ntrajectory.\n
