Cost of dynamical quark simulations: O(a) improved Wilson fermions
نویسنده
چکیده
Several collaborations have employed O(a) improved Wilson fermions, following the nonperturbative determination of the clover coefficient csw for Nf = 2 flavours in the range β ≥ 5.2 [1]. UKQCD, QCDSF and JLQCD perform simulations on physically large volumes (L ∼ 1.5 fm) using periodic boundary conditions [2–4], whereas ALPHA use Schrödinger functional (SF) boundary conditions on small volumes (L ≪ 1 fm) [5,6]. In the following I shall discuss the two types of simulations separately.
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