TY  - JOUR
AU  - Schlingemann, Dirk
TI  - On the Existence of Kink (Soliton) States
JO  - Reviews in mathematical physics
VL  - 08
IS  - 08
SN  - 1793-6659
CY  - [Singapore]
PB  - World Scientific
M1  - PUBDB-2017-07123
SP  - 1187 - 1203
PY  - 1996
N1  - F-Bereich; Theorie; no PDF-File
AB  - Several two-dimensional quantum field theory models have more than one vacuum state. Familiar examples are the Sine-Gordon and the  -model. It is known that in these models there are also states, called soliton or kink states, which interpolate different vacua. We investigate the following question: Which are the properties a pair of vacuum states must have, such that an interpolating kink state can be constructed? We discuss the problem in the framework of algebraic quantum field theory which includes, for example, the P(ϕ)2-models. We identify a large class of vacuum states, including the vacua of the P(ϕ)2-models, for which there is a natural way to construct an interpolating kink state.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:00
DO  - DOI:10.1142/S0129055X96000433
UR  - https://bib-pubdb1.desy.de/record/330671
ER  -