NUMERICAL-SIMULATION OF THE O(4)-SYMMETRIC PHI-4-MODEL IN THE SYMMETRIC PHASE

被引：28

作者：

FRICK, C

JANSEN, K

JERSAK, J

MONTVAY, I

MUNSTER, G

SEUFERLING, P

机构：

[1] UNIV HAMBURG, INST THEORET PHYS 2, W-2000 HAMBURG 50, GERMANY

[2] FORSCHUNGSZENTRUM JULICH, HLRZ, W-5170 JULICH, GERMANY

[3] DESY, W-2000 HAMBURG 52, GERMANY

来源：

NUCLEAR PHYSICS B | 1990年 / 331卷 / 02期

关键词：

D O I：

10.1016/0550-3213(90)90218-3

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：

The four-dimensional O(4)-symmetric φ4-model is numerically simulated on lattices L3 · T with 4 ≤ L ≤ 16 and T = 12, 16 in the phase with unbroken symmetry at infinite bare quartic coupling. Physical observables, such as the renormalized mass and coupling, are determined with good precision by using a recently developed efficient cluster algorithm. Special care is taken to study the finite volume dependence in order to achieve a reliable infinite volume extrapolation. The finite volume behaviour of masses and couplings is well approximated by one-loop renormalized perturbation theory. The obtained infinite volume results agree with a recent analytical calculation based on a high-order hopping parameter expansion. © 1990.

引用

页码：515 / 530

页数：16

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