UNSTABLE MODES AND CONFINEMENT IN THE LATTICE SCHRÖDINGER FUNCTIONAL APPROACH-Reference-Cited by-同舟云学术

UNSTABLE MODES AND CONFINEMENT IN THE LATTICE SCHRÖDINGER FUNCTIONAL APPROACH

Published:1998-04-10 Issue:11 Volume:13 Page:861-871
ISSN:0217-7323
Container-title:Modern Physics Letters A
language:en
Short-container-title:Mod. Phys. Lett. A

Author:

CEA PAOLO¹,COSMAI LEONARDO¹

Affiliation:

1. INFN, Sezione di Bari, Via Amendola, 173, I-70126 Bari, Italy

Abstract

We analyze the problem of the Nielsen–Olesen unstable modes in the SU(2) lattice gauge theory by means of a recently introduced gauge-invariant effective action. We perform numerical simulations in the case of a constant Abelian chromomagnetic field. We find that for lattice sizes above a certain critical length, the density of effective action shows a behavior compatible with the presence of the unstable modes. We put out a possible relation between the dynamics of the unstable modes and the confinement.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Astronomy and Astrophysics,Nuclear and High Energy Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217732398000930

Reference13 articles.

1. Infrared instability of the vacuum state of gauge theories and asymptotic freedom

2. An unstable Yang-Mills field mode

3. On the stability of the perturbative ground state in non-abelian Yang-Mills theories

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