Department of Physics, Florida State University, Tallahassee, Florida 32306-4350, USA.
Phys Rev Lett. 2012 Jun 1;108(22):221601. doi: 10.1103/PhysRevLett.108.221601. Epub 2012 May 29.
Previously a model of only vector fields with a local U(1)⊗SU(2) symmetry was introduced for which one finds a massless U(1) photon and a massive SU(2) vector boson in the lattice regularization. Here it is shown that quantization of its classical continuum action leads to perturbative renormalization difficulties. But, nonperturbative Monte Carlo calculations favor the existence of a quantum continuum limit.
先前曾引入一个仅具有局部 U(1)⊗SU(2) 对称性的向量场模型，在晶格正则化中发现了无质量 U(1)光子和质量 SU(2)矢量玻色子。这里表明，对其经典连续体作用量的量子化导致微扰重整化困难。但是，非微扰蒙特卡罗计算支持存在量子连续体极限。
