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Dynamical simulation of integrable and non-integrable models in the Heisenberg picture
Dynamical simulation non-integrable models Heisenberg picture
2010/10/21
The numerical simulation of quantum many-body dynamics is typically limited by the linear growth of entanglement with time requiring exponentially increasing computational ressources to reach a given ...
Quasideterminant solutions of the generalized Heisenberg magnet model
Heisenberg magnet Lie group SU(2)
2010/4/7
In this paper we present Darboux transformation for the generalized Heisenberg magnet (GHM) model based on general linear Lie group GL(n) and construct multi-soliton solutions in terms of quasidetermi...
阻挫诱导的亚铁磁性Heisenberg系统中的量子相变
准一维反铁磁自旋链 亚铁磁性 密度矩阵重整化群 自旋能隙
2008/5/14
利用密度矩阵重整化群(DMRG)方法研究磁性阻挫对一种S=1/2准一维反铁磁自旋链但却具有亚铁磁性的Heisenberg系统基态的影响.计算了单个晶胞的基态能、自旋关联函数以及自旋能隙.研究表明这种Heisenberg自旋系统的基态随着阻挫α的增强将从磁有序相变化到自旋无序相，并且伴随着自旋能隙的出现，量子相变点为α≈0.412.同时线形链上格点间自旋长程关联值的计算结果表明在磁有序区间体系的磁有...
专著信息
书名
Exact solution of anisotropic antiferromagnetic alternating Heisenberg-Ising spin chain
语种
英文
撰写或编译
作者
H. Yao,J. Li,Chang-De Gong
第一作者单位
出版社
Solid State Commun. 121, 687 (2002)
出版地
出版日期
2002年
...