Chen, B , Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, POB 2735, Beijing 100080, Peoples R China.
部门归属:
Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China; Peking Univ, Sch Phys, Beijing 100871, Peoples R China; Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
英文摘要:
We construct a one-parameter family of flat currents in AdS(5)xS(1) and AdS(3)xS(3) Green-Schwarz superstrings, which would naturally lead to a hierarchy of classical conserved nonlocal charges. In the former case we rewrite the AdS(5)xS(1) string using a new Z(4)-graded base of the superalgebra su(2,2|2). In both cases the existence of the Z(4) grading in the superalgebras plays a key role in the construction. As a result, we find that the flat currents, when formally written in terms of the G(0)-gauge invariant lowercase 1-forms, take the same form as the one in the AdS(5)xS(5) case.
Chen, B,He, YL,Zhang, P,et al. Flat currents of the Green-Schwarz superstrings in AdS(5) x S-1 and AdS(3) x S-3 backgrounds[J]. PHYSICAL REVIEW D,2005,71(8):-.
