摘要
We show that for Green-Schwarz superstring in AdS_(3)×S^(3),the one-parameter family of flat currents retains a zero-curvature condition and keeps the variation relations under is-symmetry,diffeomorphism,local Lorentz SO(1,2)×SO(3)and global PSU(1,1|2)^(2)symmetry transformations respectively.This indicates that the flat currents exist in all the n-symmetry gauge fixed cases.As a result,we find that the infinite conserved quantities are invariant under these transformations and independent of the gauge choice of the system.
作者
王展云
柯三民
郝昆
石康杰
WANG Zhan-Yun;KE San-Min;HAO Kun;SHI Kang-Jie(Institute of Modern Physics,Northwest University,Xi’an 710069;School of Electronic Engineering,Xi’an Institute of Posts and Telecommunications,Xi’an 710121;College of Science,Chang’an University,Xi’an 710064;Key Laboratory for Special Area Highway Engineering of Ministry of Education,Chang’an University,Xi’an 710064)
基金
Supported by the National Natural Science Foundation of China under Grant Nos 10575080 and 11047179
the NWU Graduate Cross-discipline Funds(09YJC25)
the Youth Foundation of Xi’an Institute of Posts and Telecommunications(ZL2007-18)
the Special Fund for Basic Scientific Research of Central Colleges,Chang’an University and supported by the Special Foundation for Basic Research Program of Chang’an University,Open Fund of Key Laboratory for Special Area Highway Engineering(Chang’an University)(Ministry of Education)under Grant No CHD2009JC030.
