Boundary states and finite size effects in sine-Gordon model with Neumann boundary condition

Details Boundary states and finite size effects in sine-Gordon model with Neumann boundary condition Boundary states and finite size effects in sine-Gordon model with Neumann boundary condition

2001-06-08

arxiv.org/abs/hep-th/0106069v3

Nucl.Phys. B614 (2001) 405-448

Physics

High Energy Physics

High Energy Physics - Theory

Latex, 40 pages, 17 eps figures. References and remarks added

Scientific paper

10.1016/S0550-3213(01)00391-1

The sine-Gordon model with Neumann boundary condition is investigated. Using the bootstrap principle the spectrum of boundary bound states is established. Somewhat surprisingly it is found that Coleman-Thun diagrams and bound state creation may coexist. A framework to describe finite size effects in boundary integrable theories is developed and used together with the truncated conformal space approach to confirm the bound states and reflection factors derived by bootstrap.

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