In this talk we discuss an elementary derivation of the semi-classical spectrum of neutral particles in two field theories with kink excitations. We also show that, in the non-integrable cases, each vacuum state cannot generically support more than two stable particles, since all other neutral excitations are resonances, which will eventually decay.

Kinks and particles in non-integrable quantum field theories / Mussardo, Giuseppe. - (2009), pp. 509-523. (Intervento presentato al convegno 15th International Congress of Mathematical Physics tenutosi a Rio de Janeiro nel Luglio 2006) [10.1007/978-90-481-2810-5_34].

Kinks and particles in non-integrable quantum field theories

Mussardo, Giuseppe
2009-01-01

Abstract

In this talk we discuss an elementary derivation of the semi-classical spectrum of neutral particles in two field theories with kink excitations. We also show that, in the non-integrable cases, each vacuum state cannot generically support more than two stable particles, since all other neutral excitations are resonances, which will eventually decay.
2009
NEW TRENDS IN MATHEMATICAL PHYSICS
509
523
Vladas Sidoravicius
Mussardo, Giuseppe
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.11767/15304
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