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- W4317464981 abstract "I provide a new idea based on geometric analysis to obtain a positive mass gap in pure non-abelian renormalizable Yang-Mills theory. The orbit space, that is the space of connections of Yang-Mills theory modulo gauge transformations, is equipped with a Riemannian metric that naturally arises from the kinetic part of reduced classical action and admits a positive definite sectional curvature. The corresponding regularized textit{Bakry-'Emery} Ricci curvature (if positive) is shown to produce a mass gap for $2+1$ and $3+1$ dimensional Yang-Mills theory assuming the existence of a quantized Yang-Mills theory on $(mathbb{R}^{1+2},eta)$ and $(mathbb{R}^{1+3},eta)$, respectively. My result on the gap calculation, described at least as a heuristic one, applies to non-abelian Yang-Mills theory with any compact semi-simple Lie group in the aforementioned dimensions. In $2+1$ dimensions, the square of the Yang-Mils coupling constant $g^{2}_{YM}$ has the dimension of mass, and therefore the spectral gap of the Hamiltonian is essentially proportional to $g^{2}_{YM}$ with proportionality constant being purely numerical as expected. Due to the dimensional restriction on $3+1$ dimensional Yang-Mills theory, it seems one ought to introduce a length scale to obtain an energy scale. It turns out that a certain `trace' operation on the infinite-dimensional geometry naturally introduces a length scale that has to be fixed by measuring the energy of the lowest glu-ball state. However, this remains to be understood in a rigorous way." @default.
- W4317464981 created "2023-01-20" @default.
- W4317464981 creator A5061963713 @default.
- W4317464981 date "2023-01-17" @default.
- W4317464981 modified "2023-10-17" @default.
- W4317464981 title "A geometric approach to the Yang-Mills mass gap" @default.
- W4317464981 doi "https://doi.org/10.48550/arxiv.2301.06996" @default.
- W4317464981 hasPublicationYear "2023" @default.
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