Browsing Τμήμα Φυσικής / Department of Physics by Subject "1/N Expansion"
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Article
The 4D SU(3) gauge theory with an imaginary θ term
(2011)We study the scaling behavior of the 4D SU(3) lattice gauge theory in the presence of a θ term, by Monte Carlo simulations computing the topological properties at imaginary θ. The numerical results provide a good evidence ...
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Article
Topological susceptibility of SU(N) gauge theories at finite temperature
(2004)We investigate the large-N behavior of the topological susceptibility χ in four-dimensional SU(N) gauge theories at finite temperature, and in particular across the finite-temperature transition at Tc. For this purpose, ...
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Article
θ dependence of SU (N) gauge theories
(2002)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 ...
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Article
θ Dependence of the spectrum of SU(N) gauge theories
(2006)We study the θ dependence of the spectrum of four-dimensional SU(N) gauge theories, where θ is the coefficient of the topological term in the Lagrangian, for N 3 and in the large-N limit. We compute the O(θ2) terms of the ...