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arXiv 0901.1616hep-th
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N=2超引力中的瞬子和虫洞

Instantons and Wormholes in N=2 supergravity

Marco Chiodaroli, Michael Gutperle

摘要:

本文构造了$d=4$,N=2超重态超引力理论中的欧氏瞬子和虫洞解.利用Coleman提出的确定边界项出现的方法,讨论了涉及赝标轴子的超多重作用的解析延拓。特别是,我们调查所获得的条件,要求的行动是正定的,一旦考虑到边界项。详细研究了陪集$G_{2,2}/SU(2)\times SU(2)$参数化的两个超多重态的情况。还讨论了将超对称性降低到N=1的Orientifold投影。

英文摘要:

In this paper, we construct Euclidean instanton and wormhole solutions in $d=4$, N=2 supergravity theories with hypermultiplets. The analytic continuation of the hypermultiplet action, involving pseudoscalar axions, is discussed using the approach originally developed by Coleman which determines the apparence of boundary terms. In particular, we investigate the conditions obtained by requiring the action to be positive-definite once the boundary terms are taken into account. The case of two hypermultiplets parameterizing the coset $G_{2,2}/SU(2)\times SU(2)$ is studied in detail. Orientifold projections which reduce the supersymmetry to N=1 are also discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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