Behavior of a ⌽4-Kink in the Presence of an Inhomogeneous Perturbation
In recent years, the ⌽4 field theory became of interest as a one-dimensional model for structural phase transitions. In particular, it was shown that in a linear chain of harmonically coupled particles, which in addition sit in local double minimum potentials, ordered clusters exist. The walls separating ordered clusters are the kinks of ⌽4-theory . The possible relevance of an ensemble of independently moving kinks to the spectrum of scattered neutrons and light has been investigated [1,2].
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