Perfect actions for scalar theories

被引：3
|
作者：
Bietenholz, W [1 ]
机构：
[1] Forschungszentrum Julich, HLRZ, D-52425 Julich, Germany
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 1998年 / 63卷
关键词：
D O I：
10.1016/S0920-5632(97)00935-3
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We construct an optimally local perfect lattice action for free scalars of arbitrary mass, and truncate its couplings to a unit hypercube. Spectral and thermodynamic properties of this "hypercube scalar" are drastically improved compared to the standard action. We also discuss new variants of perfect actions, using anisotropic or triangular lattices, or applying new types of RGTs. Finally we add a lambda phi(4) term and address perfect lattice perturbation theory. We report on a lattice action for the anharmonic oscillator, which is perfect to O(lambda).
引用
收藏
页码：901 / 903
页数：3
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