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- aggregation classification "A1".
- aggregation creator person.
- aggregation creator person.
- aggregation date "2011".
- aggregation format "application/pdf".
- aggregation hasFormat 1204699.bibtex.
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- aggregation isPartOf urn:issn:1815-0659.
- aggregation language "eng".
- aggregation rights "I don't know the status of the copyright for this publication".
- aggregation subject "Physics and Astronomy".
- aggregation title "An exactly solvable spin chain related to Hahn polynomials".
- aggregation abstract "We study a linear spin chain which was originally introduced by Shi et al. [Phys. Rev. A 71 (2005), 032309, 5 pages], for which the coupling strength contains a parameter α and depends on the parity of the chain site. Extending the model by a second parameter β, it is shown that the single fermion eigenstates of the Hamiltonian can be computed in explicit form. The components of these eigenvectors turn out to be Hahn polynomials with parameters (α,β) and (α+1,β−1). The construction of the eigenvectors relies on two new difference equations for Hahn polynomials. The explicit knowledge of the eigenstates leads to a closed form expression for the correlation function of the spin chain. We also discuss some aspects of a q-extension of this model.".
- aggregation authorList BK938837.
- aggregation volume "7".
- aggregation aggregates 1204703.
- aggregation isDescribedBy 1204699.
- aggregation similarTo SIGMA.2011.033.
- aggregation similarTo LU-1204699.