New approach to non-perturbative physics

V.G. Ksenzov
1997 Physics Letters B  
It was shown that the non-perturbative properties of the vacuum are described by the quantum fluctuations around the classical background with zero canonical momentum. The vacuum state has been built and checked in the framework of the sigma models in two dimentions.
doi:10.1016/s0370-2693(97)00962-3 fatcat:azozjovhyvb6dlit6wwcysaxrq