On perturbative quantum field theory with boundary

Details On perturbative quantum field theory with boundary On perturbative quantum field theory with boundary

2003-09-11

arxiv.org/abs/hep-th/0309119v2

Nucl.Phys. B682 (2004) 585-617

Physics

High Energy Physics

High Energy Physics - Theory

29 pages, 19 eps and 11 pstex figures v2: some references and comments added, misprints corrected

Scientific paper

10.1016/j.nuclphysb.2004.01.018

Boundary quantum field theory is investigated in the Lagrangian framework. Models are defined perturbatively around the Neumann boundary condition. The analyticity properties of the Green functions are analyzed: Landau equations, Cutkosky rules together with the Coleman-Norton interpretation are derived. Illustrative examples as well as argument for the equivalence with other perturbative expansions are presented.

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