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cond-mat.str-el2004
Anomalous scaling of conductivity in integrable fermion systems
P. Prelovsek, S. El Shawish, X. Zotos +1
We analyze the high-temperature conductivity in one-dimensional integrable models of interacting fermions: the t-V model (anisotropic Heisenberg spin chain) and the Hubbard model,…
cond-mat.str-el2003
Finite Temperature Dynamical Correlations using the Microcanonical Ensemble and the Lanczos Algorithm
M. W. Long, P. Prelovsek, S. El Shawish +2
We show how to generalise the zero temperature Lanczos method for calculating dynamical correlation functions to finite temperatures. The key is the microcanonical ensemble, which…