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A non-trivial spectrum for the trivial ϕ^4 theory

F. Gliozzi
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Abstract

It is pointed out that one-component ϕ^4 lattice theory in four dimensions has a non-perturbative sector which can be studied by means of an exact duality transformation of its Ising limit. This duality maps it to a membrane model. As a consequence, the ϕ^4-theory turns out to have, in the broken symmetry phase, a remarkably rich spectrum of physical states corresponding to membrane excitations. A numerical study of the correlators between dual variables allows to evaluate the masses of the first few states.

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F. Gliozzi. 1997-09-18. A non-trivial spectrum for the trivial ϕ^4 theory. https://doi.org/10.1016/s0920-5632(97)00855-4

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