Lattice QCD on small computers

M. Alford; W. Dimm; G. P. Lepage; G. Hockney; P. B. Mackenzie

doi:10.1016/0370-2693(95)01131-9

Lattice QCD on small computers

M. Alford
, W. Dimm
, G. P. Lepage
, G. Hockney
, P. B. Mackenzie

Department of Physics

Research output: Contribution to journal › Article › peer-review

196 Scopus citations

Abstract

We demonstrate that lattice QCD calculations can be made 10³-10⁶ times faster by using very coarse lattices. To obtain accurate results, we replace the standard lattice actions by perturbatively-improved actions with tadpole-improved correction terms that remove the leading errors due to the lattice. To illustrate the power of this approach, we calculate the static-quark potential, and the charmonium spectrum and wavefunctions using a desktop computer. We obtain accurate results that are independent of the lattice spacing and agree well with experiment.

Original language	English
Pages (from-to)	87-94
Number of pages	8
Journal	Physics Letters B
Volume	361
Issue number	1-4
DOIs	https://doi.org/10.1016/0370-2693(95)01131-9
State	Published - Nov 2 1995

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title = "Lattice QCD on small computers",

abstract = "We demonstrate that lattice QCD calculations can be made 103-106 times faster by using very coarse lattices. To obtain accurate results, we replace the standard lattice actions by perturbatively-improved actions with tadpole-improved correction terms that remove the leading errors due to the lattice. To illustrate the power of this approach, we calculate the static-quark potential, and the charmonium spectrum and wavefunctions using a desktop computer. We obtain accurate results that are independent of the lattice spacing and agree well with experiment.",

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AU - Alford, M.

AU - Dimm, W.

AU - Lepage, G. P.

AU - Hockney, G.

AU - Mackenzie, P. B.

PY - 1995/11/2

Y1 - 1995/11/2

N2 - We demonstrate that lattice QCD calculations can be made 103-106 times faster by using very coarse lattices. To obtain accurate results, we replace the standard lattice actions by perturbatively-improved actions with tadpole-improved correction terms that remove the leading errors due to the lattice. To illustrate the power of this approach, we calculate the static-quark potential, and the charmonium spectrum and wavefunctions using a desktop computer. We obtain accurate results that are independent of the lattice spacing and agree well with experiment.

AB - We demonstrate that lattice QCD calculations can be made 103-106 times faster by using very coarse lattices. To obtain accurate results, we replace the standard lattice actions by perturbatively-improved actions with tadpole-improved correction terms that remove the leading errors due to the lattice. To illustrate the power of this approach, we calculate the static-quark potential, and the charmonium spectrum and wavefunctions using a desktop computer. We obtain accurate results that are independent of the lattice spacing and agree well with experiment.

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DO - 10.1016/0370-2693(95)01131-9

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SN - 0370-2693

VL - 361

SP - 87

EP - 94

JO - Physics Letters B

JF - Physics Letters B

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Lattice QCD on small computers

Abstract

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