Fractionalized Edge Spins and Boundary Conditions in Frustrated Ferromagnetic Quantum Spin Chains

被引：0
作者：
Hyeong Jun Lee
MooYoung Choi
Gun Sang Jeon
机构：
[1] Seoul National University,Department of Physics and Astronomy and Center for Theoretical Physics
[2] Institute for Basic Science (IBS),Center for Theoretical Physics of Complex Systems
[3] Ewha Womans University,Department of Physics
来源：
Journal of the Korean Physical Society | 2019年 / 75卷
关键词：
Quantum spin chains; Density-matrix renormalization group; Boundary conditions;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
We examine frustrated ferromagnetic S = 1 spin chains at zero temperature by using the density-matrix renormalization group method. In open boundary conditions, the S = 1 quantum spin chains are known to produce fractionalized free spins on each edge, which causes difficulty in the numerical calculation of the thermodynamic ground states. To overcome this, we propose modified open boundary conditions to suppress the formation of fractionalized edge spins. The comparison of the physical properties of the ground states, which are obtained from the modified and the standard open boundary conditions, reveals that the modified open boundary conditions are more effective in improving the convergence behavior and reducing the computational costs.
引用
收藏
页码：929 / 934
页数：5
相关论文
共 78 条
  • [21] Renard J P(2001)undefined Phys. Rev. B 63 134417-undefined
  • [22] Katsumata K(2002)undefined Phys. Rev. B 66 024407-undefined
  • [23] Zaliznyak I A(2002)undefined J. Phys. Soc. Jpn. 71 2637-undefined
  • [24] Dender D C(1996)undefined Phys. Rev. B 54 R6827-undefined
  • [25] Broholm C(1993)undefined Solid State Commun. 86 409-undefined
  • [26] Reich D H(1999)undefined Phys. Rev. Lett. 83 632-undefined
  • [27] Hagiwara M(2000)undefined Phys. Rev. B 62 8921-undefined
  • [28] Glarum S H(2002)undefined Phys. Rev. B 66 014428-undefined
  • [29] Ma S(2006)undefined Phys. Rev. B 73 012407-undefined
  • [30] Regnault L P(2008)undefined J. Phys. Soc. Jpn. 77 013703-undefined
12345678