On form factors of boundary changing operators

Z. Bajnok, L. Hollo

Research output: Contribution to journalArticle

1 Citation (Scopus)


We develop a form factor bootstrap program to determine the matrix elements of local, boundary condition changing operators. We propose axioms for these form factors and determine their solutions in the free boson and Lee-Yang models. The sudden change in the boundary condition, caused by an operator insertion, can be interpreted as a local quench and the form factors provide the overlap of any state before the quench with any outgoing state after the quench.

Original languageEnglish
Pages (from-to)96-131
Number of pages36
JournalNuclear Physics B
Publication statusPublished - Apr 1 2016

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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