ABCD of ’t Hooft operators
نویسندگان
چکیده
منابع مشابه
Wilson-’t Hooft operators and the theta angle
We consider (3+1)-dimensional SU(N)/ZN Yang-Mills theory on a space-time with a compact spatial direction, and prove the following result: Under a continuous increase of the theta angle θ → θ+2π, a ’t Hooft operator T (γ) associated with a closed spatial curve γ that winds around the compact direction undergoes a monodromy T (γ) → T (γ). The new ’t Hooft operator T (γ) transforms under large ga...
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We employ the twistor approach to the construction of U(2) multi-instantons à la ’t Hooft on noncommutative R. The noncommutative deformation of the Corrigan-Fairlie-’t Hooft-Wilczek ansatz is derived. However, naively substituting into it the ’t Hooft-type solution is unsatisfactory because the resulting gauge field fails to be self-dual on a finite-dimensional subspace of the Fock space. We r...
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A derivative expansion technique is developed to compute functional determinants of quadratic operators, non diagonal in spacetime indices. This kind of operators arise in general ’t Hooft gauge fixed Lagrangians. Elaborate applications of the developed derivative expansion are presented. Typeset using REVTEX 1
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In 1976 ’t Hooft introduced an elegant approach towards understanding the physical consequences of the topological structures that appear in non-Abelian gauge theories. These effects are concisely summarized in terms of an effective multifermion interaction. These old arguments provide a link between a variety of recent and sometimes controversial ideas including discrete chiral symmetries appe...
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ژورنال
عنوان ژورنال: Journal of High Energy Physics
سال: 2021
ISSN: 1029-8479
DOI: 10.1007/jhep04(2021)241