Quenched divergences in the deconfined phase of SU(2) gauge theory - art. no. 117502

Citation
J. Kiskis et R. Narayanan, Quenched divergences in the deconfined phase of SU(2) gauge theory - art. no. 117502, PHYS REV D, 6411(11), 2001, pp. 7502
Citations number
29
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
05562821 → ACNP
Volume
6411
Issue
11
Year of publication
2001
Database
ISI
SICI code
0556-2821(200112)6411:11<7502:QDITDP>2.0.ZU;2-9
Abstract
The Spectrum of the overlap Dirac operator in the deconfined phase of quenc hed gauge theory is known to have three parts: exact zeros arising from top ology, small nonzero eigenvalues that result in a nonzero chiral condensate , and the dense bulk of the spectrum, which is separated from the small eig envalues by a gap. In this paper, we focus on the,mail nonzero eigenvalues in an SU(2) gauge field background at beta = 2.4 and N-T = 4. This low-lyin g spectrum is computed on four different Spatial lattices (12(3), 14(3), 16 (3), and 18(3)). As the volume increases, the small eigenvalues become incr easing concentrated near zero in such a way as to strongly suggest that the infinite volume condensate diverges.