Finite-size corrections in theXYZHeisenberg chain
- 1 November 1985
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 32 (9) , 5959-5965
- https://doi.org/10.1103/physrevb.32.5959
Abstract
We compute the large but finite-size corrections to the XYZ spin-(1/2) Heisenberg chain using a method recently proposed by de Vega and Woynarovich. We derive in closed form the corrections to the ground-state energy and the function σ(λ) (finite-size analog to the root density). Different asymptotic regimes are found when the number of sites goes to infinity depending on the two parameters of the Hamiltonian.Keywords
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