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Fractionalized Edge Spins and Boundary Conditions in Frustrated Ferromagnetic Quantum Spin Chains
- Title
- Fractionalized Edge Spins and Boundary Conditions in Frustrated Ferromagnetic Quantum Spin Chains
- Authors
- Lee, Hyeong Jun; Choi, MooYoung; Jeon, Gun Sang
- Ewha Authors
- 전건상
- SCOPUS Author ID
- 전건상
- Issue Date
- 2019
- Journal Title
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY
- ISSN
- 0374-4884
1976-8524
- Citation
- JOURNAL OF THE KOREAN PHYSICAL SOCIETY vol. 75, no. 11, pp. 929 - 934
- Keywords
- Quantum spin chains; Density-matrix renormalization group; Boundary conditions
- Publisher
- KOREAN PHYSICAL SOC
- Indexed
- SCIE; SCOPUS; KCI
- Document Type
- Article
- Abstract
- 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.
- DOI
- 10.3938/jkps.75.929
- Appears in Collections:
- 자연과학대학 > 물리학전공 > Journal papers
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