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Form factors in the Bullough-Dodd related models: The Ising model in a magnetic field | | Oleg Alekseev
; | | Date: |
23 Jun 2011 | | Abstract: | In the framework of the free field representation we obtain exact form
factors of the exponential operators in the Bullough-Dodd model. We propose
explicit recurrence relations between them and prove reflection relations of
the exponential operators. These form factors are shown to be related with the
lightest breathers form factors of the primary operators in the minimal models
perturbed by the operator $Phi_{1,2}$. We consider the Ising model in a
magnetic field in detail. The explicit recurrence relation allows us to
calculate the multi-particle form factors of the spin and the energy density
operators which involve the lightest particles only. We present their explicit
expressions up to four-particle form factors. | | Source: | arXiv, 1106.4758 | | Services: | Forum | Review | PDF | Favorites | |
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