Integrable Model of Boundary Interaction: The Paperclip

Details Integrable Model of Boundary Interaction: The Paperclip Integrable Model of Boundary Interaction: The Paperclip

2003-12-15

arxiv.org/abs/hep-th/0312168v1

Nucl.Phys. B683 (2004) 423-454

Physics

High Energy Physics

High Energy Physics - Theory

41 pages, 2 figures

Scientific paper

10.1016/j.nuclphysb.2004.02.010

We consider a model of 2D quantum field theory on a disk, whose bulk dynamics is that of a two-component free massless Bose field (X,Y), and interaction occurs at the boundary, where the boundary values (X_B, Y_B) are constrained to special curve - the ``paperclip brane''. The interaction breaks conformal invariance, but we argue that it preserves integrability. We propose exact expression for the disk partition function (and more general overlap amplitudes < P | B > of the boundary state with all primary states) in terms of solutions of certain ordinary linear differential equations.

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