发表机构
Facultad de Ingeniería, Universidad San Sebastián; Centro de Estudios Científicos, Universidad San Sebastián(圣塞巴斯蒂安大学工程学院; 圣塞巴斯蒂安大学科学研究中心)
机构由 AI 辅助整理,请以论文原文为准。AI 中文总结
本文研究带退化曲率算子的SO(2n)规范理论,通过约束Higgs场得到与SU(n)杨-米尔斯理论局部等价的弱曲率分支,并引入投影Pontryagin理论及等变完备化。
AI 中文摘要
我们研究具有由正交复结构定义的退化曲率动力学算子的$SO(2n)$规范理论。动力学像是$\su(n)$,而伴随真空的稳定子为$U(n)$。我们区分固定投影子、无约束伴随Higgs场以及精确约束在轨道$SO(2n)/U(n)$上的Higgs场。对于具有正Higgs动力学系数的约束理论,陪集连接是辅助的,中心连接是零的。非线性Dirac分析确立了正则弱曲率分支,在四维中具有$2(n^2-1)$个物理自由度,局部等价于$SU(n)$杨-米尔斯理论。无约束理论中的法向Higgs位移可以改变动力学秩,因此该计数不扩展到该场空间。我们还刻画了可能的代数分支。我们通过共同的Clifford对合表达Stelle-West Higgs-引力作用,并引入投影Pontryagin理论和满秩等变完备化。
英文摘要
We study $SO(2n)$ gauge theories with a degenerate curvature kinetic operator defined by an orthogonal complex structure. The kinetic image is $\su(n)$, while the adjoint vacuum has stabilizer $U(n)$. We distinguish fixed projectors, unrestricted adjoint Higgs fields, and Higgs fields constrained exactly to the orbit $SO(2n)/U(n)$. For the constrained theory with a positive Higgs kinetic coefficient, the coset connection is auxiliary and the central connection is null. A nonlinear Dirac analysis establishes a regular weak-curvature branch with $2(n^2-1)$ physical degrees of freedom in four dimensions, locally equivalent to $SU(n)$ Yang--Mills theory. Normal Higgs displacements in the unrestricted theory can change the kinetic rank, so this count does not extend to that field space. We also characterize possible algebraic branches. We express the Stelle--West Higgs--gravity action through a common Clifford involution, and introduce projected Pontryagin theories and a full-rank equivariant completion.
Comments67 pages