tmLQCD: A program suite to simulate Wilson twisted mass lattice QCD
نویسندگان
چکیده
We discuss a program suite for simulating Quantum Chromodynamics on a 4dimensional space-time lattice. The basic Hybrid Monte Carlo algorithm is introduced and a number of algorithmic improvements are explained. We then discuss the implementations of these concepts as well as our parallelisation strategy in the actual simulation code. Finally, we provide a user guide to compile and run the program. PACS: 11.15.-q, 11.15.Ha, 11.38.-t, 11.38.Gc Preprint-Numbers: DESY 09-073, HU-EP-09/23, SFB/CPP-09-43
منابع مشابه
Twisted mass Lattice QCD
In this contribution I review lattice formulations based on so-called twisted mass (tm) Wilson quarks, focusing on the general properties and problems that in my opinion are most relevant for on-going studies and applications to physics . The simplest of these formulations, which corresponds to QCD with one mass degenerate quark doublet, was introduced in ref. [1] as a way to get rid of the spu...
متن کاملApplying chiral perturbation to twisted mass lattice QCD
We have explored twisted mass LQCD (tmLQCD) analytically using chiral perturbation theory, including discretization effects up to O(a), and working at next-to-leading (NLO) order in the chiral expansion. In particular we have studied the vacuum structure, and calculated the dependence of pion masses and decay constants on the quark mass, twisting angle and lattice spacing. We give explicit exam...
متن کاملThe spectrum of tmLQCD with quark and link smearing
The effect of using smeared sink operators on the hadron spectrum is studied for quenched twisted mass lattice QCD with up, down, and strange quarks. Gaussian smearing is used for quark fields, and stout link smearing for gauge fields. Smeared correlators are found to be dominated by the ground state with a small contribution from excited states, leading to an improved determination of some gro...
متن کاملTwisted mass lattice QCD
I review the theoretical foundations, properties as well as the simulation results obtained so far of a variant of the Wilson lattice QCD formulation: Wilson twisted mass lattice QCD. Emphasis is put on the discretization errors and on the effects of these discretization errors on the phase structure for Wilson-like fermions in the chiral limit. The possibility to use in lattice simulations dif...
متن کاملTwo–dimensional lattice Gross–Neveu model with Wilson twisted mass fermions
We study the two-dimensional lattice Gross–Neveu model with Wilson twisted mass fermions in order to explore the phase structure in this setup. In particular, we investigate the behaviour of the phase transitions found earlier with standard Wilson fermions as a function of the twisted mass parameter μ. We find that qualitatively the dependence of the phase transitions on μ is very similar to th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Computer Physics Communications
دوره 180 شماره
صفحات -
تاریخ انتشار 2009