DENSITY-MATRIX ALGORITHM FOR THE CALCULATION OF DYNAMICAL PROPERTIES OF LOW-DIMENSIONAL SYSTEMS

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关键词: NUMERICAL RENORMALIZATION-GROUP;    ANTIFERROMAGNETIC CHAIN;    SPIN DYNAMICS;    HEISENBERG CHAIN;    QUANTUM;    FIELD;    ZERO;   

DOI  :  10.1103/PhysRevB.52.R9827

来源: SCIE

【 摘 要 】

I extend the scope of the density-matrix renormalization-group technique developed by White to the calculation of dynamical correlation functions using the continuous fraction expansion of the Green's function. As an application and performance evaluation I calculate the spin dynamics of the one-dimensional S=1/2 Heisenberg chain.

【 授权许可】

Free