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Finite temperature quark confinement
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DOI：10.1016/S0370-2693(97)00741-7.png)
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摘要
En 中文
Confinement may be more easily demonstrated at finite temperature using the Polyakov loop than at zero temperature using the Wilson loop. A natural mechanism for confinement can arise via the coupling of the adjoint Polyakov loop to F-mu nu(2). We demonstrate this mechanism with a one loop calculation of the effective potential for SU(2) gluons in a background held consisting of a non-zero color magnetic field and a non-trivial Polyakov loop. The color magnetic field drives the Polyakov loop to non-trivial behavior, and the Polyakov loop can remove the well-known tachyonic mode associated with the Saviddy vacuum. Minimizing the real part of the effective potential leads to confinement, as determined by the Polyakov loop. Unfortunately, we cannot arrange for simultaneous stability and confinement for this simple class of field configurations. We show for a large class of abelian background fields that at one loop tachyonic modes are necessary for confinement. (C) 1997 Elsevier Science B.V.
Keyword:
CHIRAL-SYMMETRY RESTORATION
GAUGE-THEORIES
FIELDS
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期刊
IF:
4.5
论文数:
3.2W
被引数:
7.3W
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