No confinement without Coulomb confinement.
No confinement without Coulomb confinement.
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没有库仑禁闭就没有禁闭。
DOI:
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发表时间:
2002
影响因子:
8.6
通讯作者:
D. Zwanziger
中科院分区:
文献类型:
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作者:
D. Zwanziger
We compare the physical potential V(D)(R) of an external quark-antiquark pair in the representation D of SU(N), to the color-Coulomb potential V(coul)(R) which is the instantaneous part of the 44-component: of the gluon propagator in Coulomb-gauge D44(x-->,t)=V(coul)(|x-->|)delta(t)+(noninstantaneous). We show that if V(D)(R) is confining, lim(V(D)(R)=+ infinity, as is believed to hold in the absence of dynamical quarks, then the inequality V(D)(R)<or=-C(D)V(coul)(R) holds asymptotically at large R, where C(D)>0 is the Casimir in the representation D. This implies that -V(coul)(R) is also confining.