ar X iv : h ep - l at / 0 40 91 46 v 2 5 O ct 2 00 4 MEM study of true flattening of free energy and the θ term ∗ † ‡
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چکیده
We study the sign problem in lattice field theory with a θ term, which reveals as flattening phenomenon of the free energy density f(θ). We report the result of the MEM analysis, where such mock data are used that ‘true’ flattening of f(θ) occurs . This is regarded as a simple model for studying whether the MEM could correctly detect non trivial phase structure in θ space. We discuss how the MEM distinguishes fictitious and true flattening.
منابع مشابه
ar X iv : h ep - l at / 0 40 91 46 v 1 2 5 Se p 20 04 MEM study of true flattening of free energy and the θ term ∗ † ‡
We study the sign problem in lattice field theory with a θ term, which reveals as flattening phenomenon of the free energy density f(θ). We report the result of the MEM analysis, where such mock data are used that ‘true’ flattening of f(θ) occurs . This is regarded as a simple model for studying whether the MEM could correctly detect non trivial phase structure in θ space. We discuss how the ME...
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تاریخ انتشار 2004