Luttinger liquid parameter for the spin-1 Heisenberg chain in a magnetic field

Details Luttinger liquid parameter for the spin-1 Heisenberg chain in a magnetic field Luttinger liquid parameter for the spin-1 Heisenberg chain in a magnetic field

2005-08-15

arxiv.org/abs/cond-mat/0508354v1

Physics

Condensed Matter

Strongly Correlated Electrons

3 pages, 1 figure

Scientific paper

10.1103/PhysRevB.72.132414

A recently derived general formula and older numerical results are combined
to deduce the behavior of the transverse correlation exponent for the spin-1
Heisenberg antiferromagnetic chain in an applied magnetic field: eta = 1/2 -
(2.0)m +O(m^2), where m is the magnetization per site. A comparison with the
O(3) non-linear sigma-model is also made.

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