76 citations · 301 across the 13 of their papers we have counts for
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Antiferromagnetic Heisenberg ladders in a staggered magnetic field
Jize Zhao, Xiaoqun Wang, Tao Xiang +4
We study the low-energy excitations of the spin-1/2 antiferromagnetic Heisenberg chain and -leg (=2, 3, 4) ladders in a staggered magnetic field . We show that ind…
Midgap States in Antiferromagnetic Heisenberg Chains with A Staggered Field
Jizhong Lou, Changfeng Chen, Jize Zhao +4
We study low-energy excitations in antiferromagnetic Heisenberg chains with a staggered field which splits the spectrum into a longitudinal and a transverse branch. Bound states ar…
Field-induced gap in the spin-1/2 antiferromagnetic Heisenberg chain: A density matrix renormalization group study
Jizhong Lou, Shaojin Qin, Changfeng Chen +2
We study the spin-1/2 antiferromagnetic Heisenberg chain in both uniform and (perpendicular) staggered magnetic fields using the density-matrix renormalization-group method. This m…
Low-energy properties and magnetization plateaus in a 2-leg mixed spin ladder
Jizhong Lou, Changfeng Chen, Shaojin Qin
Using the density matrix renormalization group technique we investigate the low-energy properties and the magnetization plateau behavior in a 2-leg mixed spin ladder consisting of…
A two-dimensional algorithm of the density matrix renormalization group
Tao Xiang, Jizhong Lou, Zhaobin Su
We propose a new approach to implement the density matrix renormalization group (DMRG) in two dimensions. With this approach the initial blocks of a L by L lattice are built up dir…
Topological effects at short antiferromagnetic Heisenberg chains
Jizhong Lou, Shaojin Qin, Tai-Kai Ng +1
The manifestations of topological effects in finite antiferromagnetic Heisenberg chains is examined by density matrix renormalization group technique in this paper. We find that di…