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Finite-Volume Form Factors in Semiclassical Approximation | G. Mussardo
; V. Riva
; G. Sotkov
; | Date: |
14 Jul 2003 | Journal: | Nucl.Phys. B670 (2003) 464-478 DOI: 10.1016/j.nuclphysb.2003.08.017 | Subject: | High Energy Physics - Theory; Mathematical Physics | hep-th cond-mat math-ph math.MP | Abstract: | A semiclassical 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 phi^4 theories in 1+1 dimensions. | Source: | arXiv, hep-th/0307125 | Services: | Forum | Review | PDF | Favorites |
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