期刊
PHYSICS LETTERS B
卷 569, 期 3-4, 页码 204-210出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2003.07.037
关键词
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We show that a kink and a topologically trivial soliton in the Gross-Neveu model form, in the large-N limit, a marginally stable static configuration, which is bound at threshold. The energy of the resulting composite system does not depend on the separation of its solitonic constituents, which serves as a modulus governing the profile of the compound soliton. Thus, in the large-N limit, a kink and a non-topological soliton exert no force on each other. (C) 2003 Elsevier B.V. All rights reserved.
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