Local magnetization of the semi-infinite XY-chain

We compute exactly the local magnetization <σxj> for the semi-infinite XY-chain at zero temperature as a function of the distance from the boundary j and the anisotropy parameter γ. It is shown that in the limit j → ∞, γ → 0 the local magnetization has the scaling form <σxj> = γ14f(2γj). We derive an exact expression for the scaling function f(x) and analyze both the small- and large-x behaviour.

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Year of publication:	1980
Authors:	Bariev, R.Z.
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 103.1980, 1, p. 363-370
Publisher:	Elsevier

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://www.econbiz.de/10011057008