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Particle structure analysis of soliton sectors in massive lattice field theories

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Abstract

We discuss the particle structure in the soliton sectors of massive lattice field theories by means of convergent cluster expansions. In several models we prove that the soliton field operator with lowest charge couples the vacuum to a stable one-particle state, in a suitable region of the coupling parameter space. Both local and stringlike solitons are analyzed. We also show that the mass of the local soliton equals the surface tension.

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  1. Dipartimento di Fisica dell'Universitá di Padova, Via Marzolo 8, I-35131, Padova, Italy

    P. A. Marchetti

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  1. P. A. Marchetti
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Communicated by K. Gawedzki

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Marchetti, P.A. Particle structure analysis of soliton sectors in massive lattice field theories. Commun.Math. Phys. 117, 501–528 (1988). https://doi.org/10.1007/BF01223377

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