Improving dynamical lattice QCD simulations through integrator tuning using Poisson brackets and a force-gradient integrator
نویسندگان
چکیده
منابع مشابه
Tuning HMC using Poisson brackets
We discuss how the integrators used for the Hybrid Monte Carlo (HMC) algorithm not only approximately conserve some Hamiltonian H but exactly conserve a nearby shadow Hamiltonian H̃, and how the difference ∆H ≡ H̃ −H may be expressed as an expansion in Poisson brackets. By measuring average values of these Poisson brackets over the equilibrium distribution ∝ e−H generated by HMC we can find the o...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2011
ISSN: 1550-7998,1550-2368
DOI: 10.1103/physrevd.84.071502