[1] Eurasian Natl Univ, Eurasian Int Ctr Theoret Phys, Astana 010008, Kazakhstan
[2] Eurasian Natl Univ, Dept Gen & Theoret Phys, Astana 010008, Kazakhstan
[3] COMSATS Inst Informat Technol, Dept Math, Sahiwal 57000, Pakistan
[4] Zhejiang Univ, Dept Opt Engn, Ctr Opt & Electromagnet Res, State Key Lab Modern Opt Instrumentat, Hangzhou 310058, Zhejiang, Peoples R China