Chandia, O.Vallilo, B.C.2019-12-112019-12-112018-10Journal of High Energy Physics, 2018(10), art. no. 88.1126-6708DOI: 10.1007/JHEP10(2018)088http://repositorio.unab.cl/xmlui/handle/ria/11365Indexación: Scopus.We would like to thank William Linch for useful discussions and comments on the draft. The work of Bcv is partially supported by FONDECYT grant number 1151409 and CON-ICYT grant number DPI20140115.In this work we give an explicit construction for the vertex operators of massless states in the pure spinor superstring in a plane wave background. The construction is based on the observation that the full action can be divided in two parts, where the simpler one is based on a smaller coset and closely resembles the gauge fixed Green-Schwarz action. © 2018, The Author(s).enAdS-CFT CorrespondenceConformal Field Models in String TheorySupergravity ModelsSuperspacesArtículo