Yupeng Wang, Wen-Li Yang, Junpeng Cao, Kangjie Shi
Published 2015-06-08Version 1
The off-diagonal Bethe Ansatz method [1] is used to revisit the periodic XXX Heisenberg spin-1/2 chain. It is found that the spectrum of the transfer matrix can be characterized by an inhomogeneous T-Q relation, a natural but nontrivial extension of Baxter's T-Q relation [2].
Comments: 7 pages, no figure, two tables
Asymptotic analysis and quantum integrable models
Determinant representations for form factors in quantum integrable models with GL(3)-invariant R-matrix
Free fermions in classical and quantum integrable models
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