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NLIE of Dirichlet sine-Gordon model for boundary bound states

Title
NLIE of Dirichlet sine-Gordon model for boundary bound states
Authors
Ahn C.Bajnok Z.Palla L.Ravanini F.
Ewha Authors
안창림
SCOPUS Author ID
안창림scopus
Issue Date
2008
Journal Title
Nuclear Physics B
ISSN
0550-3213JCR Link
Citation
vol. 799, no. 3, pp. 379 - 402
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
We investigate boundary bound states of sine-Gordon model on the finite-size strip with Dirichlet boundary conditions. For the purpose we derive the nonlinear integral equation (NLIE) for the boundary excited states from the Bethe ansatz equation of the inhomogeneous XXZ spin 1/2 chain with boundary imaginary roots discovered by Saleur and Skorik. Taking a large volume (IR) limit we calculate boundary energies, boundary reflection factors and boundary Lüscher corrections and compare with the excited boundary states of the Dirichlet sine-Gordon model first considered by Dorey and Mattsson. We also consider the short distance limit and relate the IR scattering data with that of the UV conformal field theory. © 2008 Elsevier B.V. All rights reserved.
DOI
10.1016/j.nuclphysb.2008.01.020
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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