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
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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
期刊:
影响因子:
2.8
通讯作者:
Tatsuta Yoshiyuki
Tatsuta Yoshiyuki
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Imai Hiroki;Sakamoto Makoto;Takeuchi Maki;Tatsuta Yoshiyuki

文献摘要

相似文献

分析了T2/ZN(N= 2,3,4,6)轨道上独立手征零模的数目和不动点处的缠绕数.在N= 2的情况下,利用迹公式导出了指数公式n+− n−= M/2+(− V++ V−)/4= M/2− V+/2+ 1,其中n±为±手征零模的个数,V±为T2/Z2上不动点处的缠绕数之和.我们还得到了公式n+− n−= M/N+(− V++ V−)/(2 N)= M/N-V +/N+ 1,其中N= 3,4,6。
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.