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자연과학대학
물리학전공
Journal papers
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NLIE for hole excited states in the sine-Gordon model with two boundaries
Title
NLIE for hole excited states in the sine-Gordon model with two boundaries
Authors
Ahn C.
;
Bajnok Z.
;
Nepomechie R.I.
;
Palla L.
;
Takacs G.
Ewha Authors
안창림
SCOPUS Author ID
안창림
Issue Date
2005
Journal Title
Nuclear Physics B
ISSN
0550-3213
Citation
Nuclear Physics B vol. 714, no. 3, pp. 307 - 335
Indexed
SCI; SCIE; SCOPUS
Document Type
Article
Abstract
We derive a nonlinear integral equation (NLIE) for some bulk excited states of the sine-Gordon model on a finite interval with general integrable boundary interactions, including boundary terms proportional to the first time derivative of the field. We use this NLIE to compute numerically the dimensions of these states as a function of scale, and check the UV and IR limits analytically. We also find further support for the ground-state NLIE by comparison with boundary conformal perturbation theory (BCPT), boundary truncated conformal space approach (BTCSA) and the boundary analogue of the Lüscher formula. © 2005 Elsevier B.V. All rights reserved.
DOI
10.1016/j.nuclphysb.2005.03.014
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