1996/05/31 by Fabian H. L. Essler, Fabian H. L. Eßler · 70 citations
Mathematics · Physics and Astronomy · #Algebraic structures and combinatorial models #Ansatz #Bethe ansatz #Boundary (topology) #Boundary value problem #Chain (unit) #Field (mathematics) #Mathematical analysis #Mathematical physics #Mathematics #Matrix (chemical analysis) #Physics #Physics of Superconductivity and Magnetism #Pure mathematics #Quantum electrodynamics #Quantum many-body systems #Quantum mechanics #cond-mat
paper · pdf · doi:10.1088/0305-4470/29/19/006
published in Journal of Physics A Mathematical and General 29(19), 6183-6203 (Institute of Physics) · 23 pages of revtex, discussion on analytic structure of holon S-matrix changed
openalex publication_date 1996/10/07 · arxiv created 1997/01/26 · openalex created_date 2016/06/24 · arxiv updated 2016/08/31 · openalex updated_date 2026/08/06
An open supersymmetric t - J chain with boundary fields is studied by means of the Bethe ansatz. Ground state properties for the case of an almost half-filled band and a bulk magnetic field are determined. Boundary susceptibilities are calculated as functions of the boundary fields. The effects of the boundary on excitations are investigated by constructing the exact boundary S-matrix. From the analytic structure of the boundary S-matrices one deduces that holons can form boundary bound states for sufficiently strong boundary fields.