- Abstract:
- 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.
- Publication status:
- Published
- Publisher copy:
- 10.1088/0305-4470/29/19/006
-
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- Journal:
- JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL
- Volume:
- 29
- Issue:
- 19
- Pages:
- 6183-6203
- Publication date:
- 1996-10-07
- DOI:
- EISSN:
-
1361-6447
- ISSN:
-
0305-4470
- URN:
-
uuid:23340666-a10f-47f6-a5e5-3aff8d97b1de
- Source identifiers:
-
199366
- Local pid:
- pubs:199366
- Language:
- English
- Copyright date:
- 1996
Journal article
The supersymmetric t-J model with a boundary
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