Ground-State Analysis for an Exactly Solvable Coupled-Spin Hamiltonian
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Ground-State Analysis for an Exactly Solvable Coupled-Spin Hamiltonian
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| Creator |
Mattei, E.
Links, J. |
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| Description |
We introduce a Hamiltonian for two interacting su(2) spins. We use a mean-field analysis and exact Bethe ansatz results to investigate the ground-state properties of the system in the classical limit, defined as the limit of infinite spin (or highest weight). Complementary insights are provided through investigation of the energy gap, ground-state fidelity, and ground-state entanglement, which are numerically computed for particular parameter values. Despite the simplicity of the model, a rich array of ground-state features are uncovered. Finally, we discuss how this model may be seen as an analogue of the exactly solvable p+ip pairing Hamiltonian.
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| Date |
2019-02-21T07:23:09Z
2019-02-21T07:23:09Z 2013 |
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| Type |
Article
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| Identifier |
Ground-State Analysis for an Exactly Solvable Coupled-Spin Hamiltonian / E. Mattei, J. Links // Symmetry, Integrability and Geometry: Methods and Applications. — 2013. — Т. 9. — Бібліогр.: 22 назв. — англ.
1815-0659 2010 Mathematics Subject Classification: 81R05; 17B80; 81R12 DOI: http://dx.doi.org/10.3842/SIGMA.2013.076 http://dspace.nbuv.gov.ua/handle/123456789/149368 |
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| Language |
en
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| Relation |
Symmetry, Integrability and Geometry: Methods and Applications
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| Publisher |
Інститут математики НАН України
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