Gal'tsov D, Kerner R
Laboratoire de Gravitation and Cosmologie Relativistes, Universitè Pierre et Marie Curie, 4, place Jussieu, Paris, 75252, France.
Phys Rev Lett. 2000 Jun 26;84(26 Pt 1):5955-8. doi: 10.1103/PhysRevLett.84.5955.
It is shown that the Born-Infeld-type modification of the quadratic Yang-Mills action gives rise to classical particlelike solutions prohibited in the standard Yang-Mills theory. This becomes possible due to breaking of the scale invariance by the Born-Infeld nonlinearity. New classical glueballs, which are of a sphaleronic nature, exhibit a striking similarity to the Bartnik-McKinnon solutions to the Yang-Mills theory coupled to gravity.
结果表明，二次杨-米尔斯作用量的玻恩-因费尔德型修正产生了标准杨-米尔斯理论中所禁止的经典类粒子解。由于玻恩-因费尔德非线性破坏了标度不变性，这才成为可能。新的具有闪子性质的经典胶球与耦合到引力的杨-米尔斯理论的巴特尼克-麦金农解表现出惊人的相似性。
