Title of article
Finite-volume form factors in semi-classical approximation Original Research Article
Author/Authors
G. Mussardo، نويسنده , , V. Riva، نويسنده , , G. Sotkov، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
15
From page
464
To page
478
Abstract
A semi-classical approach is used to obtain Lorentz covariant expressions for the form factors between the kink states of a quantum field theory with degenerate vacua. Implemented on a cylinder geometry it provides an estimate of the spectral representation of correlation functions in a finite volume. Illustrative examples of the applicability of the method are provided by the sine-Gordon and the broken φ4 theories in 1+1 dimensions.
Keywords
Form factors , Spectral density in finite volume , Kink solutions in finite volume
Journal title
Nuclear Physics B
Serial Year
2003
Journal title
Nuclear Physics B
Record number
879690
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