Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
1999-03-02
Physics
Condensed Matter
Strongly Correlated Electrons
4 pages and 1 figure
Scientific paper
10.1103/PhysRevB.60.14529
Using the density matrix renormalization group (DMRG) technique, we carry out a large scale numerical calculation for the S=2 antiferromagnetic Heisenberg chain. Performing systematic scaling analysis for both the chain length $L$ and the number of optimal states kept in the iterations $m$, the Haldane gap $\Delta (2)$ is estimated accurately as $(0.0876\pm0.0013)J$. Our systematic analysis for the S=2 chains not only ends the controversies arising from various DMRG calculations and Monte Carlo simulations, but also sheds light on how to obtain reliable results from the DMRG calculations for other complicated systems.
Qin Shaojing
Wang Xiaoqun
Yu Lu
No associations
LandOfFree
The Haldane gap for the S=2 antiferromagnetic Heisenberg chain revisited does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with The Haldane gap for the S=2 antiferromagnetic Heisenberg chain revisited, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Haldane gap for the S=2 antiferromagnetic Heisenberg chain revisited will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-290409