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Article overview
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Green's function of a finite chain and the discrete Fourier transform | S. Cojocaru
; | Date: |
22 Apr 2007 | Journal: | International Journal of Modern Physics B Vol. 20, No. 5 (2006)
593-605 | Subject: | Mathematical Physics (math-ph) | Abstract: | A new expression for the Green’s function of a finite one-dimensional lattice
with nearest neighbor interaction is derived via discrete Fourier transform.
Solution of the Heisenberg spin chain with periodic and open boundary
conditions is considered as an example. Comparison to Bethe ansatz clarifies
the relation between the two approaches. | Source: | arXiv, arxiv.0704.2898 | Services: | Forum | Review | PDF | Favorites |
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