|
| | | | |
| | | |
| Stat |
Members: 3645
Articles: 2'501'711
Articles rated: 2609
20 April 2024 |
|
| | | | |
|
Article overview
| |
|
|
Spin Liquid Ground State of the Spin-1/2 Square $J_1$-$J_2$ Heisenberg Model | | Hong-Chen Jiang
; Hong Yao
; Leon Balents
; | | Date: |
10 Dec 2011 | | Abstract: | We perform highly accurate density matrix renormalization group (DMRG)
simulations to investigate the ground state properties of the spin-1/2
antiferromagnetic square lattice Heisenberg $J_1$-$J_2$ model. Based on studies
of numerous long cylinders with circumferences of up to 10 lattice spacings, we
obtain strong evidence for a topological quantum spin liquid state in the
region $0.41leq J_2/J_1leq 0.62$, separating conventional N’eel and striped
antiferromagnetic states for smaller and larger $J_2/J_1$, respectively. The
quantum spin liquid is characterized numerically by the absence of magnetic or
valence bond solid order, and non-zero singlet and triplet energy gaps.
Furthermore, we positively identify its topological nature by measuring a
non-zero topological entanglement entropy and a non-trivial finite size
dimerization effect depending upon the parity of the circumference of the
cylinder. | | Source: | arXiv, 1112.2241 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
browser Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
|
| |
|
|
|
|
News, job offers and information for researchers and scientists:
| |
REGISTER