Yang-Mills instantons in an asymptotically locally flat background: Taub-NUT vs. Taub-Bolt

被引：0
|
作者：
Radu, E. [1 ,2 ]
机构：
[1] Univ Aveiro, Dept Matemat, Campus Santiago, P-3810183 Aveiro, Portugal
[2] Ctr Res & Dev Math & Applicat CIDMA, Campus Santiago, P-3810183 Aveiro, Portugal
来源：
EPL | 2022年 / 137卷 / 03期
关键词：
SYMMETRIES;
D O I：
10.1209/0295-5075/ac535e
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We present arguments for the existence of a one-parameter family of self-dual Yang-Mills instantons in the background of Taub-NUT and Taub-Bolt spaces. These solutions are finite everywhere and generically carry a non-integer Pontryagin charge. The Taub-NUT space configurations can be considered as interpolating (when varying the NUT parameter) between the Prasad-Sommerfield and BPST instantons. Copyright (C) 2022 EPLA
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