Index and winding numbers on T^2/Z_N orbifolds with magnetic flux
Index and winding numbers on T^2/Z_N orbifolds with magnetic flux
复制标题
具有磁通量的 T^2/Z_N 轨道上的索引和绕组数
DOI:
10.1016/j.nuclphysb.2023.116189
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发表时间:
2023
影响因子:
2.8
通讯作者:
Tatsuta Yoshiyuki
中科院分区:
文献类型:
--
作者:
Imai Hiroki;Sakamoto Makoto;Takeuchi Maki;Tatsuta Yoshiyuki
We analyze the number of independent chiral zero modes and the winding numbers at the fixed points on T 2/Z N (N= 2, 3, 4, 6) orbifolds with magnetic flux. In the case of N= 2, we derive the index formula n+− n−= M/2+(− V++ V−)/4= M/2− V+/2+ 1 by using the trace formula, where n±are the numbers of the±chiral zero modes and V±are the sums of the winding numbers at the fixed points on T 2/Z 2. We also obtain the formula n+− n−= M/N+(− V++ V−)/(2 N)= M/N− V+/N+ 1 for N= 3, 4, 6 under an assumption.