Quantum Yang-Mills on the two-sphere
Quantum Yang-Mills on the two-sphere
复制标题
二球体上的量子杨-米尔斯
DOI:
10.1007/bf02097703
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发表时间:
1990
期刊:
影响因子:
--
通讯作者:
D. Fine
中科院分区:
文献类型:
--
作者:
D. Fine
We obtain the quantum expectations of gauge-invariant functions of the connection on a principalG=SU(N)bundle overS2. We show that the spaceA/gmof connections modulo gauge transformations which are the identity at one point is itself a principal bundle over ΩG, based loops in the symmetry group. The fiber inA/gmis an affine linear space. Quantum expectations are iterated path integrals first over this fiber then over ΩG, each with respect to the push-forward toA/gmof the measure s-S(A)DA.S(A)denotes the Yang-Mills action onA. There is a global section ofA/gmon which the first integral is a Gaussian. The resulting measure on ΩGis the conditional Wiener measure. We explicitly compute the expectations of a special class of Wilson loops.