Double sine-Gordon model revisited
作者： G. Takács , F. Wágner
DOI: 10.1016/J.NUCLPHYSB.2006.02.004
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摘要: Abstract We reconsider the mass spectrum of double sine-Gordon theory where recent semiclassical results called into question previously accepted picture. use truncated conformal space approach (TCSA) to investigate claims. demonstrate that numerics supports original results, and strongly disagrees with those obtained from soliton form factor techniques. Besides numerical analysis, we also discuss underlying theoretical arguments.
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