Distributions of gaps and end-to-end correlations in random transverse-field Ising spin chains

Details Distributions of gaps and end-to-end correlations in random transverse-field Ising spin chains Distributions of gaps and end-to-end correlations in random transverse-field Ising spin chains

1998-02-23

arxiv.org/abs/cond-mat/9802246v1

Physics

Condensed Matter

12 pages revtex, 10 figures, submitted to Phys. Rev. B

Scientific paper

10.1103/PhysRevB.58.9131

A previously introduced real space renormalization-group treatment of the random transverse-field Ising spin chain is extended to provide detailed information on the distribution of the energy gap and the end-to-end correlation function for long chains with free boundary conditions. Numerical data, using the mapping of the problem to free fermions, are found to be in good agreement with the analytic finite size scaling predictions.

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