Laboratory;
of;
Low;
Dimensional;
Quantum;
Structures;
and;
Quantum;
Control;
of;
Ministry;
of;
Education,;
Department;
oy;
rnystcs,;
Hunan;
Normal;
University,;
Changsha;
410081,;
China;
of;
Mathematics;
and;
Physics,;
University;
of;
South;
China,;
Hengyang;
421001,;
China;
of;
Mathematics;
and;
Computer;
Science,;
Hunan;
Normal;
University,;
Changsha;
410081,;
China;
and;
Information;
Engineering;
School,;
Central;
South;
University;
of;
Forestry;
and;
Technology,;
Changsha;
410004,;
China;
of;
Physics,;
Guangxi;
University,;
Nanning;
530004,;
China;
of;
Applied;
Physics,;
Hunan;
University,;
Changsha;
410082,;
China;
Centre;
for;
Materials;
Physics,;
Chinese;
Academy;
of;
Sciences,;
Shenyang;
110015,;
China;