166 citations · 204 across the 3 of their papers we have counts for
4 papers
Quantum Breathers in Electron-phonon Systems
W. Z. Wang, A. R. Bishop, J. T. Gammel +1
Quantum breathers are studied numerically in several electron-phonon coupled finite chain systems, in which the coupling results in intrinsic nonlinearity but with varying degrees…
Calculation of Densities of States and Spectral Functions by Chebyshev Recursion and Maximum Entropy
R. N. Silver, H. Roder
We present an efficient algorithm for calculating spectral properties of large sparse Hamiltonian matrices such as densities of states and spectral functions. The combination of Ch…
Spectral properties of the 2D Holstein t-J model
H. Fehske, G. Wellein, B. Bäuml +1
Employing the Lanczos algorithm in combination with a kernel polynomial moment expansion (KPM) and the maximum entropy method (MEM), we show a way of calculating charge and spin ex…
Spin correlation functions in random-exchange s=1/2 XXZ chains
Heinrich Röder, Joachim Stolze, Richard N. Silver +1
The decay of (disorder-averaged) static spin correlation functions at T=0 for the one-dimensional spin-1/2 XXZ antiferromagnet with uniform longitudinal coupling and random tr…