| Title |
Nested algebraic Bethe ansatz for deformed orthogonal and symplectic spin chains / |
| Authors |
Gerrard, Allan ; Regelskis, Vidas |
| DOI |
10.1016/j.nuclphysb.2020.115021 |
| Full Text |
|
| Is Part of |
Nuclear physics B.. Amsterdam : Elsevier. 2020, vol. 956, art. no. 115021, p. [1-30].. ISSN 0550-3213. eISSN 1873-1562 |
| Keywords [eng] |
Bethe Ansatz ; Spin Chain ; Quantum Loop Algebra |
| Abstract [eng] |
We construct exact eigenvectors and eigenvalues for Uq(sp(2n))- and Uq(so(2n))-symmetric closed spin chains by means of a nested algebraic Bethe ansatz method. We use a fusion procedure to construct higher-dimensional Lax operators. Our approach generalises and extends the results obtained by Reshetikhin and De Vega–Karowski. We also present a generalisation of Tarasov–Varchenko trace formula for nested Bethe vectors. |
| Published |
Amsterdam : Elsevier |
| Type |
Journal article |
| Language |
English |
| Publication date |
2020 |
| CC license |
|
