期刊
JOURNAL OF HIGH ENERGY PHYSICS
卷 -, 期 1, 页码 -出版社
SPRINGER
DOI: 10.1007/JHEP01(2017)014
关键词
Solitons Monopoles and Instantons; Sigma Models; Supersymmetric Effective Theories
资金
- National Natural Science Foundation of China [11675223]
- Ministry of Education, Culture, Sports, Science (MEXT) of Japan [15H05855, 1511006]
- Japan Society for the Promotion of Science (JSPS) [25400268]
- MEXT [S1511006]
- Kitasato University Research
- Grants-in-Aid for Scientific Research [16H03984, 15H05855] Funding Source: KAKEN
A supersymmetric extension of the Skyrme model was obtained recently, which consists of only the Skyrme term in the Nambu-Goldstone (pion) sector complemented by the same number of quasi-Nambu-Goldstone bosons. Scherk-Schwarz dimensional reduction yields a kinetic term in three or lower dimensions and a potential term in two dimensions, preserving supersymmetry. Euclidean solitons (instantons) are constructed in the supersymmetric Skyrme model. In four dimensions, the soliton is an instanton first found by Speight. Scherk-Schwarz dimensional reduction is then performed once to get a 3-dimensional theory in which a 3d Skyrmion-instanton is found and then once more to get a 2d theory in which a 2d vortex-instanton is obtained. Although the last one is a global vortex it has finite action in contrast to conventional theory. All of them are non-BPS states breaking all supersymmetries.
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