Gauge Transformation and Conservation Laws of Landau--Lifschitz Equation for a Spin Chain

Chin. Phys. Lett.

2004, Vol. 21

Issue (9): 1699-1702 DOI:

Original Articles

Gauge Transformation and Conservation Laws of Landau--Lifschitz Equation for a Spin Chain

HUANG Nian-Ning;CAI Hao;LIU Feng-Ming;SHI Li-Na

Department of Physics, Wuhan University, Wuhan 430072

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HUANG Nian-Ning, CAI Hao, LIU Feng-Ming et al 2004 Chin. Phys. Lett. 21 1699-1702

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Abstract Introducing an explicit expression of gauge transformation turning the spin in linear order of spectral parameter in the first Lax pair into the third axis in spin space, we derive the required Hamiltonian
ensities for the spin chain with the easy axis, easy plane, and full anisotropy, respectively.

Keywords: 05.45.Yv 43.81.Dp 42.65.Re

Published: 01 September 2004

PACS:	05.45.Yv	(Solitons)
	43.81.Dp
	42.65.Re	(Ultrafast processes; optical pulse generation and pulse compression)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2004/V21/I9/01699

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