出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：A gauge-invariant wavefunctional is proposed as an approximation to the ground state of Yang-
Mills theory in 2+1 dimensions, quantized in temporal gauge. The proposed vacuum state is the
true ground state of the appropriate Hamiltonian in both the free-field limit, and in a zero mode
strong-field limit. Confinement, in this approach, arises via dimensional reduction, and we present
numerical results for the mass gap. The issue of color screening is briefly discussed.
