Multi-instantons, three-dimensional gauge theory, and the Gauss-Bonnet-Chern theorem
Multi-instantons, three-dimensional gauge theory, and the Gauss-Bonnet-Chern theorem
复制标题
多瞬时、三维规范理论和高斯-邦内-陈定理
DOI:
10.1016/s0550-3213(97)00455-0
复制
发表时间:
1997
期刊:
影响因子:
--
通讯作者:
M. Mattis
中科院分区:
文献类型:
--
作者:
N. Dorey;V. Khoze;M. Mattis
We calculate multi-instanton effects in a three-dimensional gauge theory with N = 8 supersymmetry and gauge group SU(2). The k-instanton contribution to an eight-fermion correlator is found to be proportional to the Gauss-Bonnet-Chem integral of the Gaussian curvature over the centered moduli space of charge-k BPS monopoles, M̄k. For k = 2 the integral can be evaluated using the explicit metric on M̄2found by Atiyah and Hitchin. In this case the integral is equal to the Euler character of the manifold. More generally the integral is the volume contribution to the index of the Euler operator on M̄kwhich may differ from the Euler character by a boundary term. We conjecture that the boundary terms vanish and evaluate the multi-instanton contributions using recent results for the cohomology of M̄kWe comment briefly on the implications of our result for a recently proposed test of M(atrix) theory.
DOI:
10.1515/9781400859306
发表时间:
1988
期刊:
--
影响因子:
--
作者:
M. Atiyah;N. Hitchin
通讯作者:
M. Atiyah;N. Hitchin