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论文题目:	Unified Description on Behavior of Lyapunov Exponent for 1-D Anderson Model Near Band Center
论文题目英文:
作者:	Feng, De-Long; Kang, Kai; Qin, Shao-Jing; Wang, Chui-Lin
论文出处:
刊物名称:	COMMUNICATIONS IN THEORETICAL PHYSICS
年:	2019
卷:	71
期:	4
页:	463-467
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摘要:	We investigate the behavior for the Lyapunov exponent around the band center in one-dimensional Anderson model with weak disorder. Using a parametrization method we derive the corresponding differential equation and solve the associated invariant distribution. We obtain the coefficient for the leading correction term for small energy in band center anomaly. A high precision Pade approximation formula is applied to fully amend the anomalous behavior of Lyapunov exponent near band center.
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