On gl■k2Current Superalgebra and Twisted Conformal Field Theory
On gl(■)k2Current Superalgebra and Twisted Conformal Field Theory出 版 物:《Communications in Theoretical Physics》 (理论物理(英文版))
年 卷 期:2007年第1期
页 面:69-77页
核心收录:
学科分类:07[理学] 070201[理学-理论物理] 0702[理学-物理学]
基 金:The project supported by National Key Basic Research Program of China under Grant No.2004CB31800,2006CB805905 National Natural Science Foundation of China under Grant Nos.10231050 and 10375087
主 题:superalgebra differential operator realization free field realization conformal field theory
摘 要:Motivated by the recently discovered hidden symmetry of the type IIB Green-Schwarz superstring oncertain background,the non-semisimple Kac-Moody twisted superalgebra glis investigated by means of thevector coherent state method and boson-fermion *** free field realization of the twisted current superalgebraat general level k is *** corresponding Conformal Field Theory (CFT) has zero central *** the classification theory,this CFT is a nonunitary field theory. After projecting out a U(1) factor and an outerautomorphism operator,we get the free field representation of psl,which is the algebra of glmodulothe Z-outer automorphism,the CFT has central charge -2.