Magnetic charge superselection in the deconfined phase of Yang-Mills theory

被引：8
|
作者：
D'Elia, M
Di Giacomo, A
Lucini, B
机构：
[1] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy
[2] Ist Nazl Fis Nucl, Sez Genova, I-16146 Genoa, Italy
[3] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy
[4] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy
[5] Univ Oxford, Oxford OX1 3NP, England
来源：
PHYSICAL REVIEW D | 2004年 / 69卷 / 07期
关键词：
D O I：
10.1103/PhysRevD.69.077504
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The vacuum expectation value of an operator carrying a magnetic charge is studied numerically for temperatures above the deconfinement temperature in SU(2) and SU(3) gauge theory. By analyzing its finite size behavior, this is found to be exactly zero in the thermodynamical limit for any T>T-c whenever the magnetic charge of the operator is different from zero. These results show that magnetic charge is superselected in the hot phase of quenched QCD.
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页数：4
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