Spin and energy correlations in the one dimensional spin 1/2 Heisenberg model

Details Spin and energy correlations in the one dimensional spin 1/2 Heisenberg model Spin and energy correlations in the one dimensional spin 1/2 Heisenberg model

1997-11-25

arxiv.org/abs/cond-mat/9711264v1

Physics

Condensed Matter

Strongly Correlated Electrons

10 pages, 3 figures, gzipped postscript

Scientific paper

10.1088/0953-8984/10/12/001

In this paper, we study the spin and energy dynamic correlations of the one
dimensional spin 1/2 Heisenberg model, using mostly exact diagonalization
numerical techniques. In particular, observing that the uniform spin and energy
currents decay to finite values at long times, we argue for the absence of spin
and energy diffusion in the easy plane anisotropic Heisenberg model.

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