θ =π in S U N / ℤ N $$ \mathrm{S}\mathrm{U}(N)/{\mathbb{Z}}_N $$ gauge theories
نویسندگان
چکیده
منابع مشابه
θ dependence of SU ( N ) gauge theories
We study the θ dependence of four-dimensional SU(N) gauge theories, for N ≥ 3 and in the large-N limit. We use numerical simulations of the Wilson lattice formulation of gauge theories to compute the first few terms of the expansion of the ground-state energy F (θ) around θ = 0, F (θ) − F (0) = A2 θ(1 + b2θ2 + ...). Our results support Witten’s conjecture: F (θ) − F (0) = A θ + O(1/N) for suffi...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2017
ISSN: 1029-8479
DOI: 10.1007/jhep09(2017)137