Abstract
The ground state of the four-chain Heisenberg ladder model is numerically investigated. Hidden-order correlations suitable for the system are introduced and calculated with an emphasis on the spatially isotropic point, where a corresponding material exists. The existence of a long-range hidden-order correlation indicates formation of a short-range RVB state in the case of the antiferromagnetic inter-chain coupling. A transition between the phase of the ferromagnetic inter-chain coupling and that of the antiferromagnetic one is discussed.
Original language | English |
---|---|
Pages (from-to) | 560-568 |
Number of pages | 9 |
Journal | journal of the physical society of japan |
Volume | 65 |
Issue number | 2 |
DOIs | |
Publication status | Published - 1996 |
Externally published | Yes |
Keywords
- Haldane phase
- Hidden correlation
- Ladder model
- Resonating valence bond
ASJC Scopus subject areas
- Physics and Astronomy(all)