Bound and anti-bound soliton states for a quantum integrable derivative nonlinear Schrödinger model

Basu-Mallick, B. ; Bhattacharyya, Tanaya ; Sen, Diptiman (2004) Bound and anti-bound soliton states for a quantum integrable derivative nonlinear Schrödinger model Physics Letters A, 325 (5-6). pp. 375-380. ISSN 0375-9601

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Related URL: http://dx.doi.org/10.1016/j.physleta.2004.04.010

Abstract

We find that localized quantum N-body soliton states exist for a derivative nonlinear Schrödinger (DNLS) model within an extended range of coupling constant (ξq) given by 0 < |ξq| < 1/ћtan(π/N−1). We also observe that soliton states with both positive and negative momentum can appear for a fixed value of ξq. Thus the chirality property of classical DNLS solitons is not preserved at the quantum level. Furthermore, it is found that the solitons with positive (negative) chirality have positive (negative) binding energy.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Derivative Nonlinear Schrödinger Model; Coordinate Bethe Ansatz; Soliton; 02.30.Ik; 03.65.Ge; 11.10.Lm; 05.45.Yv
ID Code:45589
Deposited On:28 Jun 2011 05:43
Last Modified:18 May 2016 01:49

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