Soliton dynamics in 1D quantum antiferromagnets

2000/05/26 by A. Ferrer, A. Villares Ferrer, A. O. Caldeira +5
Computer Science · Physics and Astronomy · #Condensed Matter (cond-mat) #FOS: Physical sciences #Nonlinear Dynamics and Pattern Formation #Nonlinear Photonic Systems #Nonlinear Waves and Solitons #cond-mat

paper · pdf · doi:10.48550/arxiv.cond-mat/0005474

8 pages, 4 figures

arxiv created 2000/05/26 · openalex publication_date 2000/05/26 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The problem of dissipative motion of solitons in the case of tetramethyl ammonium manganese chloride (TMMC) is studied as a function of the external magnetic field and the temperature. Two specific situations are analyzed separately; the first, above the transition temperature T_N, in which the classical motion of the spin degree of freedom is described by a sine-Gordon (SG) equation of motion and, the second, below T_N, in which the system is described by a double sine-Gordon (2SG) equation of motion. The existence of a dissipative regime for the soliton motion and its influence on the dynamical structure factor -which might be experimentally detected- are reported.

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