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UID:562@qft.physik.hu-berlin.de
DTSTART;TZID=Europe/Berlin:20150513T150000
DTEND;TZID=Europe/Berlin:20150513T160000
DTSTAMP:20150511T163511Z
URL:https://qft.physik.hu-berlin.de/next-seminars/israel-ramirez-universid
 ad-tecnica-federico-santa-maria/
SUMMARY:Israel Ramirez\, Universidad Técnica Federico Santa Maria - Pure S
 pinors String and Dilatation Operator
DESCRIPTION:A systematic construction of the physical spectrum in string th
 eory is still missing. In the Pure Spinor String there's been progress in 
 the construction of massless states using the BRST charge. For massive sta
 tes the task is daunting\, even in flat space. A simpler requirement for p
 hysical operators in string theory is to have vanishing worldsheet anomalo
 us dimension. In this talk we derive the rules for a systematic computatio
 n of the worldsheet anomalous dimension of any operator on a $AdS_5\\times
  S^5$ background. Also\, another approach to construct the spectrum of phy
 sical states is discussed using a supertwistor space formulation.
CATEGORIES:Research Seminars
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