New proposal for numerical simulations of systems with a θ-vacuum term
نویسندگان
چکیده
The purpose of this contribution is to report a new approach, recently proposed by us in [1], to simulate numerically systems with a θ-vacuum term. To fix the ideas let us consider the partition function ZV (θ) of any θ-vacuum like model in a finite space-time lattice volume V . This action can be written, up to a normalization constant, as the discrete Fourier transform of the probability distribution function (p.d.f.) of the topological charge at θ = 0:
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تاریخ انتشار 2002