Quantum phases of dimerized and frustrated Heisenberg spin chains with s = 1/2, 1 and 3/2: an entanglement entropy and fidelity study
arXiv:1208.0706 · doi:10.1088/0953-8984/25/12/125603
Abstract
We study here different regions in phase diagrams of the spin-1/2, spin-1 and spin-3/2 one dimensional antiferromagnetic Heisenberg systems with frustration (next-nearest-neighbor interaction ) and dimerization (). In particular, we analyze the behaviors of the bipartite entanglement entropy and fidelity at the gapless to gapped phase transitions and across the lines separating different phases in the plane. All the calculations in this work are based on numerical exact diagonalizations of finite systems.
12 pages, 15 figures; provided some finite size analysis results, some changes in text accordingly; to appear in J. Phys.: Condens. Matter
References in corpus (18)
- Fidelity, dynamic structure factor, and susceptibility in critical phenomena
- Quantum critical scaling of the geometric tensors
- Quantum magnetism and criticality
- Scaling of entanglement support for Matrix Product States
- Ground-State Fidelity and Bipartite Entanglement in the Bose-Hubbard Model
- Fidelity susceptibility, scaling, and universality in quantum critical phenomena
- Ground state fidelity from tensor network representations
- Long-distance entanglement in spin systems
- Fidelity susceptibility and long-range correlation in the Kitaev honeycomb model
- Fidelity and Quantum phase transition for the Heisenberg chain with the next-nearest-neighbor interaction
- Quantum Monte Carlo simulations of fidelity at magnetic quantum phase transitions
- Finite temperature fidelity susceptibility for one-dimensional quantum systems
- Entanglement in the Majumdar-Ghosh model
- Reduced fidelity susceptibility and its finite-size scaling behaviors
- Oscillating fidelity susceptibility near a quantum multicritical point
- Reduced fidelity in topological quantum phase transitions
- Fidelity susceptibility and general quench near an anisotropic quantum critical point
- Valence bond entanglement entropy of frustrated spin chains