EntityQ1048763· pop 7· linked from 180 articlesPolyakov actionSign in to saveaction describing the worldsheet of a string in string theoryConnectionshistory of string theoryEntitynon-linear sigma modelEntitystring theoryEntityvertex operator algebraEntityblack braneEntityphysicsEntityBlack holeConceptdigital object identifierEntityStandard ModelEntityDavid GrossEntityGerard 't HooftEntityholographyEntityquantum field theoryEntitymultiverseEntitygravitonEntityMichio KakuEntityFourier seriesEntitybibcodeEntityLorentz transformationEntityquantum electrodynamicsEntityCategoriesConformal field theoryString theory