[Ikram, Manzoor; Zubairy, M. Suhail; Li, Gao-xiang] Ctr Quantum Phys, Inst Informat Technol, COMSATS, Islamabad, Pakistan.
[Li, Gao-xiang] Huazhong Normal Univ, Dept Phys, Wuhan 430079, Peoples R China.
[Zubairy, M. Suhail] Texas A&M Univ, Inst Quantum Studies, Dept Phys, College Stn, TX 77843 USA.
[Zubairy, M. Suhail] Texas A&M Univ, Doha 23874, Qatar.