Nonlinear soliton confinement in weakly coupled antiferromagnetic spin chains
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DOI: 10.1103/physrevb.102.024437
Abstract: We analyze the low-energy dynamics of quasi one dimensional, large-$S$ quantum antiferromagnets with easy-axis anisotropy, using a semi-classical non-linear sigma model. The saddle point approximation leads to a sine Gordon equation which supports soliton solutions.… read more here.
Keywords: non linear; nonlinear soliton; domain walls; confinement ... See more keywords