Phase diagram of the spin-Peierls chain with local coupling
arXiv:cond-mat/0607209 · doi:10.1103/PhysRevB.74.214426
Abstract
We explore the ground-state phase diagram of a Heisenberg spin chain coupled locally to optical phonons (bond coupling), using large-scale density matrix renormalization group calculations and an extended perturbative analysis. For the quantum phase transition from the spin liquid to the dimerized phase, we find deviations from previous quantum Monte Carlo and flow equation results.
arXiv comment4 pages, 3 figures
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- Competing Orders and Unconventional Criticality in the Su-Schrieffer-Heeger Model
- Valence-Bond Order in a Honeycomb Antiferromagnet Coupled to Quantum Phonons
- Variational wave functions for the spin-Peierls transition in the Su-Schrieffer-Heeger model with quantum phonons
- Spin Excitation Assisted by Non-Softening Phonon for Spin-Peierls Model
- Quantum Phase Transition in Antiferromagnetic Heisenberg Chains Coupled to Phonons