A056063 Coefficients in power series of autocorrelation function of a spin s=1/2 particle in Heisenberg chain at infinite temperature.

1, 4, 44, 652, 11636, 242816, 5896200, 166988876, 5522663076, 212691519520, 9480072152976, 485032014072352, 28212945137704000, 1845697627092687232, 134276285717364346136, 10746808538882581859580

Offset

0,2

References

Markus Boehm and Hajo Leschke, Dynamic spin-pair correlations in a Heisenberg chain at infinite temperature based on an extended short-time expansion, J. Phys. A 25, 1043 (1992)

Markus Boehm et al., Spectral signature of quantum spin diffusion in dimensions d=1, 2 and 3, Phys. Rev. B 49, 417 (1994)

Links

Table of n, a(n) for n=0..15.

M. Boehm, Home page

Crossrefs

Sequence in context: A005721 A103870 A371680 * A218224 A177749 A291198

Adjacent sequences: A056060 A056061 A056062 * A056064 A056065 A056066

Keyword

hard,nice,nonn

Author

Markus Boehm (markus.boehm(AT)coi.de), Jul 27 2000

Status

approved