182 citations · 1.3k across the 35 of their papers we have counts for
35 papers
Quantized Lattice Dynamic Effects on the Peierls transition of the Extended Hubbard Model
Christopher J. Pearson, William Barford, Robert J. Bursill
The density matrix renormalization group method is used to investigate the Peierls transition for the extended Hubbard model coupled to quantized phonons. Following our earlier wor…
Quantized Lattice Dynamic Effects on the Spin-Peierls Transition
Christopher J. Pearson, William Barford, Robert J. Bursill
The density matrix renormalization group method is used to investigate the spin-Peierls transition for Heisenberg spins coupled to quantized phonons. We use a phonon spectrum that…
Computational Investigations of the Primary Excited States of Poly(para-phenylene vinylene)
Robert J. Bursill, William Barford
The Pariser-Parr-Pople model of pi-conjugated electrons is solved by the density matrix renormalization group method for the light emitting polymer, poly(para-phenylene vinylene).…
The t-Jz ladder
A. Weisse, R. J. Bursill, C. J. Hamer +1
The phase diagram of the two-leg t-Jz ladder is explored, using the density matrix renormalization group method. Results are obtained for energy gaps, electron density profiles and…
Can Quantum Lattice Fluctuations Destroy the Peierls Broken Symmetry Ground State?
William Barford, Robert J Bursill
The study of bond alternation in one-dimensional electronic systems has had a long history. Theoretical work in the 1930s predicted the absence of bond alternation in the limit of…
Spin Liquid Phase in Anisotropic Triangular Lattice Heisenberg Model: Exact diagonalization and density-matrix renormalization group calculations
M. Q. Weng, D. N. Sheng, Z. Y. Weng +1
Based on exact diagonalization and density matrix renormalization group (DMRG) method, we show that an anisotropic triangle lattice Heisenberg spin model has three distinct quantum…